Question: Using samples of 100 observations in each, a quality inspector has obtained the followin data: Sample 1 2 3 4 Number of Defectives 3 2

Using samples of 100 observations in each, a quality inspector has obtained the followin data: Sample 1 2 3 4 Number of Defectives 3 2 4 7 If the true fraction of the defectives for this process is unknown, what is your estimate of it based on allt above samples? 0.05 0.03 0.04 0.06 What is your estimate of the standard deviation of the sampling distribution of the fraction of the defectives for samples of this size? 0.002365 0.004899 0.00236 0.003464 Using control limits of 0.05 and 0.001, is the process in control? Yes, it is in-control. No, it is out-of-control

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