Consider the gain in weight of 19 female rats between 28 and 84 days after

birth. 12 rats were fed on a high protein diet and 7 rats on a low protein diet:

High protein (X1): 134, 146, 104, 119, 124, 161, 107, 83, 113, 129, 97, 123

Low protein (X2): 70, 118, 101, 85, 107, 132, 94

Given summary statistics below, please finish following questions.

a) (10 pts) Is the variance from High protein group different from the variancefrom Low protein group? Please perform an appropriate test to support your

conclusion. (use a=0.05)