Salaries of 38 college graduates who took a statistics course in college have a mean, x, of $62,400. Assuming a standard deviation, , of $11,615, construct a 99% confidence interval for estimating the population mean . Click here to view a t distribution table. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. $<< (Round to the nearest integer as needed.).