Question: A random sample of size n=25 from a normal population produced a mean X =15.2 and a variance S'=9 (a) Give a point estimate for

A random sample of size n=25 from a normal population produced a mean X =15.2 and a variance S'=9 (a) Give a point estimate for the population mean p. (b) Find a 95% confidence interval for the population mean p. (c) Test the null hypotheses H: =14.5 against the alternative hypotheses H, : u214.5 . Use a=0.05

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