Write the word or phrase that best completes each statement or answers the question. Test the claim that σ2 ≥ 10.8 if n = 15, s2 = 9, and α = 0.05. Assume that the population is normally distributed.
We have given,
Population variance =10.8
Sample variance = 9
Sample size=15
Degree of freedom=n-1=14
Test Statistic
P value = 0.6435................by using Excel =CHIDIST(11.536,14)
P value > 0.05
Therefore, we fail to reject H0 at
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