The Web site sda.berkeley.edu/GSS for the General Social Survey enables you to compare means for groups. Compare female and male responses on the question, “What is the ideal number of children for a family to have?” in 2008. Identify CHLDIDEL as the dependent variable, SEX as the row variable, use YEAR (2008) as the selection variable, and check the Summary statistics box.
a. The 677 females who responded had a mean of 3.22 and standard deviation of 1.99. What were the results for males?
b. Report the 95% confidence interval for the difference between the population means for females and males. Interpret.