Question: A random sample of n = 25 observations from a normal population produced a sample variance equal to 21.4. Do these data provide sufficient evidence

A random sample of n = 25 observations from a normal population produced a sample variance equal to 21.4. Do these data provide sufficient evidence to indicate that sigma square is greater than 15. Test using alpha = 0.10. What is your conclusion? Accept the alternative hypothesis. We fail to reject the null. Reject the null. There is insufficient evidence to report a conclusion.

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