Use the Given Degree of Confidence and Sample Data to Construct

Use the given degree of confidence and sample data to construct a confidence interval for the population mean µ. Assume that the population has a normal distribution.
-Weights of eggs: $95 \%$ confidence; $\mathrm { n } = 22 , \overline { \mathrm { x } } = 1.77 \mathrm { oz } , \mathrm { s } = 0.47 \mathrm { oz }$

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

Correct Answer:

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