Question

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.

Answer #1

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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home / study / math / statistics and probability / statistics
and probability questions and answers / 23. construct a 95%
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Question: 23. Construct a 95% confidence interval for data sets
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