1 Using the analysis of the log transformed data construct a

1.) Using the analysis of the log transformed data, construct a 95% confidence interval for beta1.

A. (-6.17, -3.77)

B. (-5.53, -4.41)

C. (0.71, 0.86)

D. (0.62, 0.94)

E. None of the above.

2.) Using the analysis of the log transformed data, predict the weight of cerebellum when body weight is 250000 grams. (Hint: don\'t forget transform back to the original cerebellum from the log transformed data.)

A. 4.77

B. 118.0303

C. 75.5874

D. 51.872

Solution

answer of question 1.

confidence interval beta 1= beta1(+-)SE*t-value (alpha, error df)=0.7838(+-)0.0718*2.16=(.6286,.9286)

answer is D. (0.62, 0.94)

answer of question 2.

(cerebellum)=10.7+0.000165*250000=51.95

answer is D. 51.872