Page 14 of 18 Previous Save and complete later Next Compute z for the percentile given: P2s (25" percentile) Table for required value of : 1 5 0.25 P 25 9Find z, for the probability values given in the diagram below: 81% = 0.81 5 0 9 Table for required value of zSuppose that the population of lengths of aluminum-coated steel sheets is approximately normally distributed with a mean of u - 29 inches and a standard deviation of o = 0.8 inch. A quality control person wants pulled one sheet of aluminum randomly from the pile of aluminum sheets. What is the probability the selected sheet is between 28 and 31 inches long? (Using Excel) Done