A random sample of 60 married couples who have been

A random sample of 60 married couples who have been married 7 years was asked the number of children they have.The results of the survey are as follows:

A random sample of 60 married couples who have been

(a) What is the shape of the distribution of the sample mean? Why?
(b) Compute a 95% confidence interval for the mean number of children of all couples who have been married 7 years. Interpret this interval.
(c) Compute a 99% confidence interval for the mean number of children of all couples who have been married 7 years. Interpret this interval.

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...