PLEASE HELP ME

If X=74,S=28, and n=16, and assuming that the population is normally distributed, construct a 90% confidence interval estimate of the population mean, . Click here to view page 1 of the table of critical values for the t distribution. Click here to view page 2 of the table of critical values for the t distribution. Critical Values for the t Distribution (Page 1) Critical Values of t For a particular number of dignes of fredom, entry represents the critical value of t corresponding to the cumulative probability (1) and a specified upper-tail area (). Critical Values for the t Distribution (Page 2) Critical Values for the t Distribution (Page 2) Critical Values for the t Distribution (Page 2)