Question: Question 15 (4 points) Saved Using samples of 100 observations in each, a quality inspector has obtained the following data: Sample Number of Defectives 1

Question 15 (4 points) Saved Using samples of 100 observations in each, a quality inspector has obtained the following data: Sample Number of Defectives 1 3 2 2 3 4 4 7 If the true fraction of the defectives for this process is unknown, what is your estimate of it based on all the above samples? 0.05 0.03 0.04 0.06 Question 16 (4 points) Refer to the information in Q15. 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 Question 17 (2 points) Refer to the information in Q15. 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. Question 18 (4 points) Refer to the information in Q15. If we know that the fraction of the defectives is 2% if the process is in-control Determine the 3-0 control limits for the process. UCL=0.062, LCL-0 | UCL=0.054, LCL=0.001 UCL=0.054, LCL=0.002

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