Question

Use the confidence level and sample data to find a confidence interval for estimating the population μ.

A laboratory tested 90 chicken eggs and found that the mean amount of cholesterol was 230 milligrams with (sigma)=16.0 milligrams. Construct a 95 percent confidence interval for the true mean cholesterol content, μ, of all such eggs.

Answer 1

So the first thing we have to do is convert our confidence value into a z value that contains that percentage of the data.

Answer 2

1.95?

Answer 3

Well, 1.96***