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Question 15 A manufacturing process has a mean of 50.38 and a standard deviation of 0.26 on a critical measurement. Samples are taken once per hour to monitor the process. Given the current sample size and control limits, each sample has a 15% probability of being out of control. On average, how many hours will it take to detect if this process is out of control? (don't round!) Question 8 Requirements for the width of a tractor engine component are 23.38 +/- 0.626 millimeters. The current process produces components with an average width of 23.545 and a population standard deviation of 0.071. The process is normally distributed. If the control limits are set at +/- 2 standard deviations instead of +/- 3 standard deviations from the mean, what is the Cpk of this process? (Use four decimal places)