Write the word or phrase that best completes each statement or answers the question. Test the...
Write the word or phrase that best completes each statement or answers the question. Test the claim that σ2 = 30.1 if n = 12, s2 = 25.2 and α = 0.05. Assume that the population is normally distributed.
Homework Answers
H0: 
= 30.1
Ha:
30.1
Test statistics
= ( n-1) S2 /
= ( 12-1) / 25.2 / 30.1
= 9.21
chi-square critical values at 0.05 significance level with 11 df = 3.816 , 21.920
Since test statistics falls in non-rejection region, fail to reject H0
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