Homework Soursevariance of 41 at a010 parts a through eSolutiona Option D
variance of 4.1 at a=0.10 parts a through e
Solution
a).
Option D ( lower tail test)
b).
DF1=21 and DF2 =20 at 0.10 level lower tail value
critical F=0.56
c).
Rejection Region F < F0
F= 2.6/4.1 = 0.6341
Test statistic F=0.63
d).
Fail to reject null hypothesis
e).
NO there is not enough evidence to support the claim.
