Question 16 of 16 (10 points) | Question Attempt: 1 of 1 Time Remaining: 8:02 Ivan Number of patients Sample mean Sample standard Population standard deviation deviation Espan Take Sample 32 4.38 1.46 1.92 Enter the values of the sample size, the point estimate for the population mean, the population standard deviation, and the critical value you need for your 99% confidence interval. (Choose the correct critical value from the table of critical values provided.) When you are done, select "Compute". Sample size: X 3 ? Standard error: Point estimate: Critical values Population standard deviation: Margin of error: Z0.005 = 2.576 Z0.010 = 2.326 Critical value: Zo.025 = 1.960 99% confidence interval: Z0.050 = 1.645 Compute Zo.100 = 1.282 (b) Based on your sample, graph the 99% confidence interval for the population mean of the surgery durations for all heart valve patients