2} Using the General Social Survey.r attached to this assignment {"633 2010 {For Assignments) USE THIS.xlsx}, calculate a 95% confidence interval for the population mean for the number of children (CHILDS) of Americans. a. What are the upper and lower bounds for the 95% condence interval? b. C. d. Using this condence interval. what can we say about the population mean of this variable? If the standard deviation of CHILDS was higher. what effect would that have on the condence interval? If the mean of CHILDS was higher, what effect would that have on the confidence interval