Use the Given Degree of Confidence and Sample Data to Find

Multiple Choice

Use the given degree of confidence and sample data to find a confidence interval for the population standard deviation σ.
Assume that the population has a normal distribution. Round the confidence interval limits to the same number of decimal places as the sample standard deviation.
-Weights of eggs: 95% confidence; n = 22, $\bar { x }$ = 1.65 oz, s = 0.47 oz

A) $0.38 \mathrm { oz } < \sigma < 0.63 \mathrm { oz }$
B) $0.37 \mathrm { oz } < \sigma < 0.61 \mathrm { oz }$
C) $0.36 \mathrm { oz } < \sigma < 0.65 \mathrm { oz }$
D) $0.36 \mathrm { oz } < \sigma < 0.67 \mathrm { oz }$