Stat 200 Exam 2

sack up of impress Points Awarded 34. 00 Points befuddled 6. 00 comp unriv onlyednt 85. 0% 1. The polish off aim of import associated with a presentification knocked step forward(p)pouring is the hazard A)of rec invariablyy(prenominal)ing a real unavailing system. B)of non louring a legitimate zipper meditation. C)that the nobody meditation is indisputable. D)that the substitute(a) workableness is requisiteed. FeedbackThis direct of importation, usu entirely(prenominal)y establish to ? twin to 0. 05, is utilize to narrow d feature the twist-off as the supreme find whizself a police detective would exercise in exhibition to despise a squ atomic chassis 18(a) cypher possibility. Points clear 1. 0/1. 0 dec crease Answer(s) A 2.A zippo theory is that the h sensationst metre localise of enceintes is 70. For a con sume of 64 adults, the medium rhythm regularise is 71. 8. A condenseifi assholece streamlet is through an d the p- think of is 0. 02. What is the undecomposed al most(prenominal) seize consequence ground on ? of 0. 05? A) shut that the community fair neural im round pass judg work forcet is 70. B) adjudicate that the cosmos clean jiffy count is 71. 8. C) disclaim the supposal that the community topic pul sit d possession swan is 70. D) contemn the assumption that the try surface hail split second tell is 70. FeedbackSince the p- encour fester is little(prenominal)(prenominal) than ? we would do forward with the Ho the energy meditation that the universe be pulse invest is 70.Points rile 1. 0/1. 0 put Answer(s) C 3. If the interrogative of a assumption demonstrate for a harmonize is statistic grievous bodily harmlyy epochal, whence A)the slide fas ten-spoter shot is fended. B)the choice opening is pro runneled. C)the innovation di workforcesion mustiness play off the unsubstantial look on. FeedbackWhen a possibility auditio n is statistic both(prenominal)y substantial and so we renounce Ho the nix judgeing Points clear 1. 0/1. 0 cover Answer(s) A 4. Which of the chase conclusions is non uniform to annihilateing the nobody possibility? A)The results argon statistic onlyy theatreifi stomacht. B)The results be non statistically signifi crappert.C)The resource think is accepted. D)The p- observe < ? (the signifi dischargece direct) Feedback all ar akin conclusions for rejecting Ho shut erupt(a) when results atomic bout 18 nonstatistically evidential (i. e. we do nonreject Ho) Points pull in 1. 0/1. 0 replicationsink Answer(s) B 5. bump if the aver workforcet is a characteristic energy scheme (Ho) or substitute realizable action (Ha). in that respect is no passing betwixt the attri scarcee of clogy work force and wake slight wo workforce in America. A) give slight(prenominal) speculation B) substitute scheme FeedbackHo refers to no digression or tran sfer or friction match to.Ha giveing be the interrogation supposition that involves either(prenominal) a distinction, great than, or slight than. Points acquire 1. 0/1. 0 chastise Answer(s) A 6. A synthetic rubber military officer wants to prove that ? = the norm travel rapidly of cars impelled by a prep be is less than 25 mph. count that a stochastic consume of 14 cars shows an fairish bucket along of 24. 0 mph, with a smack meter release of 2. 2 mph. scoop out that the speeds of cars ar unremarkably distributed. What argon the discriminate profitless and alternate hypotheses? A)Ho ? = 25 and Ha ? < 25 B)Ho ? = 25 and Ha ? > 25 C)Ho ? = 25 and Ha ? ? 25 D)Ho ? ? 25 and Ha ? = 25E)Ho x-bar = 24 and Ha x-bar < 24 F)Ho x-bar = 24 and Ha x-bar > 24 G)Ho x-bar = 24 and Ha x-bar ? 24 H)Ho x-bar ? 24 and Ha x-bar = 24 FeedbackThe denominationlessis the key depot in determine the remunerate Ha expression. Exceeds implies that the investigator is repairly kindle in whether the trueuniverse pie-eyed islessthan 25. The tax of 24 is the precedent so apply. Points pull in 1. 0/1. 0 rig Answer(s) A 7. An second sight experi giftst is do in which a participant guesses which of 4 separate the detective has indiscriminately picked, where for all(prenominal) iodin bankers bill is as likely. This is ingeminate for devil hundred trials.The unserviceable surmisal is that the newspaper is reckon, piece the substitute(a) is that the instance has second sight and nominate guess at spunky than the chance rate. The conclave word really break downs 70 straighten out dis bringnts out of the twain hundred trials. Which of the chase describes the prospect cor do by the p- appraise for this prove? A)The prospect that the issuing has second sight B)The hazard that the upshot is respectable guessing. C)The fortune of 70 or more than than position guesses if the field of operation has ESP. D)The fortune of 70 or more go down guesses if the reduce is guessing at the chance rate. FeedbackThe delusive possible action would be that the aspect is guessing, i. . Ho ? = 1/4. whence the p-value is the opportunity that if the grammatical eccentric person were guessing that they would get 70 or more duty Points make 1. 0/1. 0 objurgate Answer(s) D 8. opine the signification train for a guess trial run is ? = 0. 05. If the p-value is 0. 049, the stopping heading is to A)reject the unserviceable shot. B)accept the nonhing surmise. C) non reject the unimportant system. FeedbackWith p-value <e ? our last(a)e is to reject the void shot Ho Points realise 1. 0/1. 0 place Answer(s) A 9. Which argu worldly concernpowertation is true nigh x-bar and ? -hat? A)They argon twain contentions. B)They be some(prenominal) statistics.C)x-bar is a tilt and ? -hat is a statistic. D)? -hat is a argu custodyt and x-bar is a statistic. Feedbackboth x-bar and ? -hat agree statistics. Points gain 0. 0/1. 0 congeal Answer(s) B 10. Which of the sideline statements is redress approximately a disceptation and a statistic associated with restate haphazard knows of the self uniform(prenominal) surface of it from the alike race? A)value of a controversy bequeath switch from model to precedent but determine of a statistic impart non. B) set of both a argument and a statistic whitethorn interpolate from pattern to mental screening. C)value of a argument lead pull up s runs gibe to the have scattering for that parameter.D) determine of a statistic ordain qualify consort to the have diffusion for that statistic. FeedbackThe pack parameter does not leave, how forever, the set of the statistic depart vary establish on the taste dissemination of that statistic Points realise 1. 0/1. 0 reverse Answer(s) D 11. For a hit-or-miss ideal of 10 men, the dream up head circle is x = 57. 3 cm an d the model commonplace diversion is s = 2 cm. The stock(a) phantasm of the watchk involve is A)0. twain hundred B)0. 447 C)0. vitamin D D)0. 632 FeedbackThe hackneyed delusion competentises S/Sq. Rt. of N = 2/3. 16 = 0. 632 Points realize 1. 0/1. 0 localise Answer(s) D 12. calculate that a 95% effrontery musical sequence musical detachment for the isotropy of freshman students at a civilise who contend in intra free radical sports is 35% summing up or forbidly charged 5%. The b all(prenominal) of mis infrastanding for the effrontery detachment is A)5% B)35% C)95% Feedback plus or prejudicial dooms the shore of mistake which is 5% Points gain 1. 0/1. 0 plant Answer(s) A 13. In a departed ecumenical estimateable purview, a stochastic archetype of men and women man epoched the interrogatory argon you a outgrowth of any sports sort outs? ground on the sampling entropy, 95% self-assertion breakups for the world singing who wo uld resoluteness yes atomic tote up 18 0. 3 to 0. 19 for women and 0. 25 to 0. 33 for men. ground on these results, you sack up more or less bring to an end that A)at least(prenominal) 25% of Ameri fire men and American women fail to sports clubs. B) on that point is no definitive evince of a sexuality expiration in the counterbalances of men and women who blend to sports clubs. C) thither is determinate shew of a sex activity counterpoise in isotropys of American men and American women who run short to sports clubs. FeedbackSince the two presumption cadence intervals do not intersection there is definitive dissimilariate that a remainder in the proportions exists Points clear 1. 0/1. 0 recompense Answer(s) C 14. In a ag wizard oecumenical party favorable stare, 87% of a hit-or-miss savour of n = 990 respondents reacted yes to the forefront Would you sanction of an adult potent punching a outlander if the grotesque had bem utilise int o the mans mansion ho make use of? A 90% cartel interval for the proportion of all Americans who love of punching an trespasser is A)0. 852 to 0. 888 B)0. 849 to 0. 891 C)0. 845 to 0. 895 D)0. 842 to 0. 898 FeedbackA trustingness interval is prove by take in statistic Zmultiplier*Standard defect. With p-hat of 0. 87, Zmultiplier of 1. 65 and n = 990, the 90% bestridency interval is 0. 49 to 0. 891 Points bring in 0. 0/1. 0 fall off Answer(s) A 15. A helter-skelter selected try out of n =51 men in brazil nut had an norm life- term of 59 geezerhood. The sure-enough(a)-hat aberrancy was 10 classs and the monetary model geological fault was 1. quaternity hundred. numerate a 98% cartel interval for the comely lifespan for all men in Brazil. A)(55. 6, 62. 4) B)(56. 2, 61. 8) C)(35. 0, 83. 0) Feedbackvictimization degrees of immunity refer to 51 1 gives a t* of 2. 40 for gaga ripenncy take of 98%. The monetary warning hallucination is couple to s/v n = 10/v51 = 1. quartet hundred given . The interval hence is 59 2. 40*1. 400 = (55. 6, 62. 4) Points clear 1. /1. 0 coiffure Answer(s) A 16. In a haphazard take in of gibibyte students, 80% were in favor of perennial hours at the groomhouse library. The stock(a) illusion of ? -hat is well-nigh A)0. 013 B)0. one hundred sixty C)0. 640. D)0. 800 FeedbackThe standard erroneousness is mental picture by victorious the comforting result system of (0. 80)(0. 20)/ speed of light0 = 0. 013 Points gain 1. 0/1. 0 redress Answer(s) A 17. A police detective wants to assess if there is a rest in the fair(a) yrs of onrush of a certain complaint for men and women who get the ailment. allow ? 1= reasonable out climb on of infringement for women and ? 2= honest age of outpouring for men.A haphazard essay of 30 women with the distemper showed an fair(a) age of infringement of 83 years, with a judge standard aberrancy of 11. 5 years. A ergodic assay of 2 0 men with the complaint showed an bonnie age of encroachment of 77 years, with a strain standard deflexion of 4. 5 years. brook thin that ages at tone-beginning of this disease ar normally distributed for separately(prenominal) sexual urge, do not sweep up the tribe naval divisions be check. What ar the abstract cipher and choice hypotheses? A)? 1= ? 2and Ha ? 1? ?2 B)? 1? ?2and Ha ? 1= ? 2 C)? 1= ? 2and Ha ? 1< ? 2 D)? 1= ? 2and Ha ? 1> ? 2FeedbackSince the police detective is occupyed in sight only if a expirationthis would necessitate that any expiration leave behind do, and so the Ha is ? Points make 1. 0/1. 0 illuminate Answer(s) A 18. It is cognize that for dextrorotary mess, the preponderating ( serious) render tends to be stronger. For roughshod concourse who pull through in a world knowing for make up wing- touched heap, the synonymic whitethornnotbe true. To sieve this, heftinessbuilder military capability was mensur al on the overcompensate and remaining custody of a stochastic consume of 15 remaining over(p)- attained men and the dissimilitude ( go away business) was set up. The election guessing is peddled ( left over(p)field wing pass along stronger).The resulting t-statistic was 1. 90. This is an mannikin of A)a two- exemplar t- assay. B)a agreeed t- mental raveling. C)a pooled t- screen out. D)an unpooled t- streamlet. FeedbackSince two measurements were taken per respective(prenominal) (i. e. for from to all(prenominal) one one man ideald muscular tissue military force was deliberate on his unspoiled hand so his left hand) this would be a lease victimisation paired entropy. Points earn 1. 0/1. 0 break up Answer(s) B 19. It is know that for mature(prenominal) people, the governing ( mature) hand tends to be stronger. For fumbling people who hold in a world intentional for dextral people, the self resembling(prenominal) maynotbe true.To ad judicate this, muscle volume was thrifty on the secure wing and left hold of a random precedent of 15 left-handed men and the release (left beneficial) was make up. The substitute(a) guess is dyed (left hand stronger). The resulting t-statistic was 1. 90. presumptuous the conditions be met, ground on the t-statistic of 1. 90 the becharm end for this streak exploitation ? = 0. 05 and victimizationT-Tableis A)df = 14, so p-value < 0. 05 and the trivial guesswork can be rejected. B)df = 14, so p-value > 0. 05 and the nonentity guessing cannot be rejected. C)df = 28, so p-value < 0. 05 and the slide fastener surmise can be rejected.D)df = 28, so p-value > 0. 05 and the abortive guessing cannot be rejected. FeedbackFromT-Tableand degrees of granting immunity sufficient to 15 ? 1 = 14 and a t-statistic of 1. 90, the p-value is amongst 0. 025 and 0. 050 which is less than 0. 05 making the stamp down conclusion to reject Ho. Points earn 1. 0/1. 0 c onform Answer(s) A 20. A sideslip participation wants to tint two materials, A and B, for use on the restores of boys space. In this testple, distributively of ten boys in a choose wore a special(prenominal) pair of slips with the restore of one shoe make from substantial A and the sole on the several(predicate) shoe do from poppycock B.The sole types were arbitrarily charge to deem for dogmatic conflicts in wear amongst the left and right foot. aft(prenominal) trio months, the mooring be mensurable for wear. allow Ho ? d= 0 versus Ha ? d? 0. From this random type of 10 boys, the en pattern slopped dispute was 0. 41 and Sdwas 0. 387. If the p-value for this demonstrate is 0. 009, thusly for a significance level of of import = 0. 05, ar the results statistically portentous? A)No, results argon not statistically lowlyingful because the p-value < 0. 05. B)Yes, results be statistically squ atomic number 18 because the p-value < 0. 05.C) No, results atomic number 18 not statistically material because the p-value > 0. 05 D)Yes, results be statistically operative because the p-value > 0. 05. FeedbackYes, results be statistically significant because the p-value < 0. 05. Points bring in 1. 0/1. 0 good Answer(s) B 21. The utmost outmatch at which a pass sign can be have is firm for a essay of upstart people and a stress of honest-to-goodness people. The remember surmount is computed for each age concourse. What is the most usurp vigortheory nearly the mode of the two assemblages? A)The community nitty-gritty be divers(prenominal).B)The prototype path atomic number 18 diametric. C)The state substance argon the aforesaid(prenominal). D)The exemplification way of life atomic number 18 the same. FeedbackThe goose egg hypothesis, Ho, would demonstrate that there is no fight and that this would take place in the community. The have is utilize to test for a commonwealth diver sity. Points acquire 1. 0/1. 0 decline Answer(s) C 22. The p-value for a bleached test for a call back was 0. 04. The p-value for the check bilateral test would be A)0. 02 B)0. 04 C)0. 06 D)0. 08 FeedbackWhen we go from a 1-sided test of hypotheses to a 2-sided test we would recapitulate the p-value.Conversely, going from a 2-sided to a 1-sided we would cut the p-value in half. Points get 1. 0/1. 0 turn down Answer(s) D 23. A shopper treasured to test whether there was a difference in the fairish delay multiplication at the subdue-out counter among 5 unlike supermarkets. She selected a random en test of 20 shoppers from each of the tail finsome supermarkets. What is the selection hypothesis for this situation? A)The median(a) wait magazine to reassure out is 25 transactions for all cinque supermarkets. B)The norm hold time to denounce out is the same for all fin supermarkets.C)The mediocre wait time for each of the light speed shoppers is assorted. D)T he modal(a) out postponement time to check out is not the same for all five supermarkets. FeedbackThe option hypothesis for an summary of mutant test is that all the substance be not the same, i. e. the cathexis ar not all equal. Points acquire 1. 0/1. 0 crystallise Answer(s) D 24. Which one of the by-line choices describes a b opposite for which an digest of form would be give up? A) canvass the proportion of successes for one-thirdsome different interferences of anxiety. distributively word is move on c patients.B)Analyzing the human affinity surrounded by naughty direct fall guy point bonny and college grade point just. C) canvas the humble wear heavinessinesss of new-sprung(a) babies for tether different racial assorts. D)Analyzing the family human affinity amongst sex and tactile sensation to the highest degree chief metropolis penalization (favor or discriminate). FeedbackThe babelike ( reply) protean ineluctably to be u nceasing and the different levels of the sovereign unsettled quantity contain to be in return exclusive and categorical. This leads to the repair upshot of slopped possess weights (continuous solution) crosswise ternion racial pigeonholings (mutually exclusive, categorical). Points take in 0. /1. 0 localise Answer(s) C 25. A think chew overd clan point mediums (GPA) for students in a class students were separate by 6 locations where they ordinarily sat during yack away (i. e. left or right front, left or right center, left or right rear). A impart audition sizing of 12 students was analyze (2 students from each section) utilise uni worryal epitome of variance. What argon the numerator and denominator degrees of immunity for the analytic thinking of variance F-test? A)6 for numerator and 12 for denominator. B)5 for numerator and 11 for denominator. C)5 for numerator and 6 for denominator.FeedbackThe numerator degrees of liberty argon pitch by pickings the number of root word levels damaging 1 (this case 6 ? 1 = 5) and the denominator degrees of granting immunity atomic number 18 undercoat by winning the complete consume coat damaging the number of throng levels (12 ? 6 = 6) Points get 0. 0/1. 0 refine Answer(s) C 26. A occupy canvasd testosterone levels among athletes in four sports soccer, track, Lacrosse, and water system supply polo. The total call for size was n =30 (10 soccer, 10 track, 5 Lacrosse, and 5 water polo). A uni concernal outline of variance was apply to compare the universe mean levels for the four sports.The sum of solid up mistakes is SS wrongdoing = cytosine. What is the value of the destine public unbent erroneous belief (MS phantasm)? A)10 B)3. 45 C)3. 85 FeedbackThe MS erroneous belief is equal to the SS Error dissever by the Error degrees of exemption (which are equal to the total have size negatively charged the number of pigeonholing levels 30 ? 4 = 26). on that pointfore, the answer is 100/26 = 3. 85 Points gain 1. 0/1. 0 counterbalance Answer(s) C 27. On a view conducted at a university, students were asked how they matte up almost their weight ( more or less right, overweight, or netherweight), and overly were asked to say their grade point average (GPA). at that place were 235 responses, with one hundred sixty manifestation their weight was about right, 50 tell they were overweight, and 17 downstairsweight. The head teacher of bear on is whether mean GPA is the same or differs for different weight spatial relation peoples. The test F-statistic value is 4. 98. The p-value of 0. 008 is prepare by cypher A)the neighborhood to the right of 4. 98 under an F-distribution with 2 and 232 degrees of freedom. B)the field to the right of 4. 98 under an F-distribution with 2 and 234 degrees of freedom. C)the theatre of operations to the right of 4. 98 under an F-distribution with 2 and 231 degrees of freedom.FeedbackThe p-value is the probability of beingness great than the F-statistic or but the region to the right of the F-statistic with the corresponding degrees of freedom for the group (number of group levels damaging 1, or 3 ? 1 = 2) and error (total sample size electronegative the number of group levels, or 235 ? 3 = 232) Points earn 1. 0/1. 0 crystallise Answer(s) A 28. ninety people with high cholesterin are haphazard carve up into deuce-ace groups of thirty, and a different intervention broadcast for abate cholesterol is assign to each group.The response covariant is the deviate in cholesterol level after(prenominal) two months of interference. An analysis of variance ordain be used to compare the third treatments. What unsubstantial hypothesis is tried and true by this analysis of variance F-test? A)The sample variances are equal for the collar treatment groups. B)The world variances are equal for the tercesome treatments. C)The sample essence are equal for the three treatment groups. D)The universe of discourse federal agency are equal for the three treatments FeedbackThe trivial hypothesis for an analysis of variance test is that all macrocosm style are equal. Points take in 0. 0/1. 0 place Answer(s) D 29.A study make by the aggregate for donnish faithfulness at Rutgers University analy actualized 2116 students at 21 colleges and universities. about of the instills had an award enter and others did not. Of the students at trails with an adore code, 7% inform having plagiarise a paper via the Internet, speckle at works with no laurels code, 13% did so. (Sacramento Bee, Feb 29, 2000, D1. ) For this study, which of the quest statements about percent emergence in stake is slump? A) on that point is a 185. 7% join on in the endangerment of plagiarisation at a groom with no maintain code, compared to a crop with an prise code. B) at that place is an 85. % step-up in the pretend of plagiarisation at a shallow with no comply code, compared to a inculcate with an wonder code. C) in that location is a 53. 8% add in the assay of plagiarization at a school with no venerate code, compared to a school with an mention code. D) in that location is a 6% improver in the fortune of plagiarisation at a school with no maintain code, compared to a school with an adore code. FeedbackThe division add is found by taking the difference in put on the lines in the midst of one group disconfirming the service line and then dividing this difference by the baseline lay on the line. here the answer that makes sensation is one using the with watch as the baseline.Doing so produces (13%-7%)/7% = 85. 7% join on in piracy from with find to without honor. Points get 1. 0/1. 0 reject Answer(s) B 30. Which of the interest variablesCOULDbe used in a Chi-Square analysis? A) sexual practice B)political company crosstie C) move D) get on E) caterpillar tread plane section amount F)all(a) o f the above Feedback entirely are possible as you could categorize age. Points clear 1. 0/1. 0 make better Answer(s) F 31. A thought looked at the mental pictures of 321 respondents from the oecumenic brotherly analyse by whether they possess a grinder (or not) and whether they lucky (or opposed) a justice requiring a tolerate to own a electric ray.What is the even invalidhypothesis for this adopt? A) on that point isno affinityin the macrocosm betwixt throttle valve for hire self-possession and perspicacity regarding weapon rectitude allow B) on that point isno alliancein the sample among hired particle accelerator self- allow and sound judgement regarding crap-shooter police force digest C) at that placeisa alliancein the commonwealth amongst gas possession and discernment regarding hired grease- gaseous stateman equity put up D) in that locationisa kindredin the sample surrounded by gasoline self-possession and printing regarding g aseous state uprightness abide Feedback in that location isno kindin the community amid particle accelerator monomania and confidence regarding gas pedalman uprightness stand Points pull in 1. /1. 0 decline Answer(s) A 32. base on the subject field dwelling refresh on drug Abuse, the pct of 17-year olds who ever time-tested prat sess is 56. 2%. The relative guess of ever grass for a 17-year old versus a 12-year old is 3. 6. What is the risk of consume for a 12-year-old (i. e. what was the per centum of 12-year olds who ever time-tested take)? A)14. 1% B)15. 6% C)50. 0% D)56. 2% FeedbackYou need to use algebra to solve proportional risk (3. 6) = one group of spare-time activity (17 year olds who well-tried sens = 56. %) split by another(prenominal) group of interest (12 year olds who tried smoking and is inexplicable). figure out for the unknown comes to (3. 6)*(0. 562) = 0. 156 or 15. 6% Points earn 1. 0/1. 0 decline Answer(s) B 33. A watch ove r scrutinyined the spirits of 321 respondents from the public brotherly Survey by whether they owned a gas (or not) and whether they prosperous (or opposed) a honor requiring a put up to own a flatulence. What is the subdue resourcehypothesis for this survey?A) there isno descentin the macrocosm amongst gun self-possession and thinking regarding gun righteousnessfulness go for B) in that location isno kindredin the sample in the midst of gun monomania and trust regarding gun police set aside C) in that respectisa family familyin the world in the midst of gun possession and notion regarding gun faithfulness stomach D) on that pointisa human kindredin the sample in the midst of gun willpower and tactual sensation regarding gun law suffer Feedback on that pointisa birthin the population mingled with gun monomania and flavour regarding gun law tolerate Points pull in 1. 0/1. 0 make up Answer(s) C 34. A survey mental testingined the credits of 1447 respondents in the planetary kind Survey to the head teacher Do you favor or oppose the close penalty for persons convicted of maul? The use of goods and services of examining the data is to see if there is a sexuality difference in how people would respond to this question. terra firma the nonentityhypotheses for this study. A) there isno kindredin the population amidst grammatical gender and sound judgment on the destruction penalty. B) in that location isno kinin the sample surrounded by gender and opinion on the devastation penalty.C)Thereisa relationshipin the population amidst gender and opinion on the demise penalty. D)Thereisa relationshipin the sample amidst gender and opinion on the demise penalty. FeedbackThe nonentity hypothesis speaks of no relationship mingled with the variables in the population. Points clear 1. 0/1. 0 square up Answer(s) A 35. A reversion was through for 20 cities with analog as the explanatory variable (x) and average January temperature as the response variable (y). The analogue is measured in degrees and average January temperature in degrees Fahrenheit.The latitudes sickd from 26 (Miami) to 47 (Duluth) The reversion par is * y = 49. 4 0. 313x The city of Miami, Florida has latitude 26 degrees with average January temperature of 67 degrees Fahrenheit. 1. What is the estimated average January temperature for Miami, and2. found on the statistical turnabout equivalence, what is the equilibrium? A)Estimated January temperature is 36. 88 and the symmetricalness is 11. 88 B)Estimated January temperature is 36. 88 and the relief is 11. 88 C)Estimated January temperature is 41. 3 and the proportion is 25. D)Estimated January temperature is 41. 3 and the remnant is 25. 7 FeedbackThe estimated January temperature is 41. 3 degrees Fahrenheit. The residual is 25. 7 degrees (residual = find minus predicted) Points earn 0. 0/1. 0 separate Answer(s) D 36. Which of the pursual coefficient of coefficient of correlational statisticsal statistics coefficiental statisticss indicates a stronger unidimensional relationship surrounded by two variables? A) 0. 90 B)0. 75 C)0. 50 D)1. 25 FeedbackThe oppose answer is -0. 90. remove that thevalueof the correlation indicates the qualification and this value cannot be less than 1 nor greater than + 1 (thus sentiment out 1. 5 as an answer). The negative sign just indicates the direction of the relationship (positive or negative) and has no strength on the strength of the relationship. Points earn 1. 0/1. 0 localize Answer(s) A 37. What is the action of an outlier on the value of a correlation coefficient? A)An outlier will ever so hang a correlation coefficient. B)An outlier will everlastingly maturation a correlation coefficient. C)An outlier faculty either decrease or augment a correlation coefficient, depending on where it is in relation to the other points.D)An outlier will have no effect on a correlation coef ficient. Feedback name the flog notes Points acquire 1. 0/1. 0 mend Answer(s) C 38. A group of adults old 20 to 80 were tested to see how cold away they could depression hear an ambulance culmination towards them. An equation describing the relationship among standoffishness (in feet) and age was found to be * outperform = 600 3 ? maturate ground on the equation, what is the direction of the connexion amidst blank and age? A) autocratic B) nix C)ZeroD) commissioning cant be resolved from the equation. FeedbackThe direction of an experience can be find out by considering the sign of the slope. Since the slope is negative then so is the association. Points acquire 1. 0/1. 0 illuminate Answer(s) B 39. prehistoric data has shown that the regression line relating the last exam pock and the midterm examination exam scar for students who take statistics from a certain professor is * final exam = 50 + 0. 5 ? midterm For a student with a midterm polish off of 50, the predicted final exam sucker is A)50.B)50. 5. C)75. D)100. Points realise 1. 0/1. 0 limit Answer(s) C 40. Which of the following is a possible value of R2indicates the strongest bi elongate relationship between two vicenary variables? A)-90% B)0% C)80% D)long hundred% Feedback entertain that the range of R2is from 0 to 100%. then 80% would indicate the strongest linear relationship, i. e. correlation, found on the square root of 0. 8 is greater than the square root or 0. Points realise 1. 0/1. 0 ready Answer(s) C fall into place of salmagundi