Use the Given Degree of Confidence and Sample Data to Construct

Multiple Choice

Use the given degree of confidence and sample data to construct a confidence interval for the population mean $\mu$ . Assume that the population has a normal distribution. A laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 185 milligrams with s =
17) 6 milligrams. A confidence interval of $173.8 \mathrm { mg } < \mu < 196.2 \mathrm { mg }$ constructed for the true mean cholesterol
Content of all such eggs. It was assumed that the population has a normal distribution. What confidence level
Does this interval represent?

A) 98%
B) 99%
C) 80%
D) 95%