Question

Construct a 95% confidence interval for the population standard deviation σ of a random sample of 15 men who have a mean weight of 165.2 pounds with a standard deviation of 12.6 pounds. Assume the population is normally distributed.

Answer #1

Refer chi-square table or use excel formula
"**=CHISQ.INV.RT(0.975,14)**" &
"**=CHISQ.INV.RT(0.025,14)"** to find the critical
values.

Round to one decimal place.

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***Please provide formulas used, step by step
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