Here are summary statistics for the weights of Pepsi in randomly selected cans: n = 36, x = 0.82412 lb, s = 0.00569 lb. Use a confidence level of 90% to complete parts (a) through (d) below. a. Identify the critical value to /2 used for finding the margin of error. to /2 = 1.69 (Round to two decimal places as needed.) b. Find the margin of error. E = Ib (Round to five decimal places as needed.)