n. Use 0.95 for the CLevel. Highlight Calculate and press ENTER. EDIT EFILE IIEE 1:2-Testm 1156. T-Testm x=1233 -SaMPZTestm n=253 -SEMPTTestm 'PFDPETEStm -PrnP2Testm Your Turn: 1. Suppose a random sample of 50 basketball players showed the average height to be 78 inches. Also assume that the population standard deviation is 1.5 inches. (a) Find a 99% confidence interval for the population mean height. (b) Find a 95% confidence interval for the population mean height. (c) Find a 90% confidence interval for the population mean height. (d) Find an 85% confidence interval for the population mean height. (e) What do you notice about the length of the confidence interval as the confidence level goes down? If you used a confidence level of 80%, would you expect the confidence interval to be longer or shorter than that of 85%? Run the program again to verify your