ora sampie ght bear researchers measured the Cl : ces around the bears chests an
ID: 3270464 • Letter: O
Question
ora sampie ght bear researchers measured the Cl : ces around the bears chests and weigh. can be expkinsd by the lirear relionship between waighr and chest size? eched the boars. Mnnabw2s used to fnd that thc au c o the iner como ation cce cien s r_0.07G Usng 0. ctemine fthere is combation bet cen chest nc wel t. hpropo cn ofthe wanation n ine ze OA. No, because the abrclr velu othc test tatisti: cxced th cntica vlc cf 0.707 C. Yes, becausc the test statistic fals between the cntic values of-0.707 and 0.707 b. Vhat proportion of the varietion in weight can be expkinsd by the linear relaicnship between weigh and chest size? Hound co three dacima places as neaced.)Explanation / Answer
(a) Option (B) Yes, because the absolute value of test statistic exceeds the critical value the 0.707
(b) r2 = (0.875)2 = 0.766
0.766 propotion of the variation in weight can be explained by the linear relationship between weight and chest size.
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