Question

An analyst distributed a survey to 25 employees of a company, who have a total of 350 employees. The purpose of the survey was to obtain information for the company's upcoming health plan renewal. One of the questions on the survey was, what is the age of the youngest child in your household? the sample mean was computed from the responses to be 5.7 years and the standard deviation was 2.7 years.

a. compute a 99% confidence interval for the mean age of the youngest child in all employees households.

Answer 1