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A manufacturer produces a type of cylinders with diameter of 4 inches. To determine whether the process is in statistical control, the operations manager randomly selects 10 samples with each sample containing 4 cylinders. The mean and range for each sample are given in the table below. Sample Mean 1 4.01 2 3.98 3 4.00 4 3.99 5 4.04 6 3.98 7 4.02 8 3.99 9 3.98 10 4.01 Answer the following questions based on the table. Range 0.04 0.06 0.02 0.03 0.06 0.02 0.02 0.04 0.05 0.06 Write your final answer only (without intermediate steps) for the fill-in-the-blank questions. Use 2-decimal accuracy for the final answer, e.g., 0.12, when necessary. uestion 2 (4 points) Question 2 (4 points) The mean of the sample means i.e., 7) = A Use 2-decimal accuracy for the final answer, e.g., 0.12, when necessary. Question 3 (4 points) A/ Use 2- The average range (i.e., R) decimal accuracy for the final answer, e.g., 0.12, when necessary. Question 4 (4 points) For the X-chart: Upper Control Limit (UCL) = A ; Lower Control Limit (LCL) = Use 2-decimal accuracy for the final answer, e.g., 0.12, when necessary. A/ Question 5 (4 points) For the R-chart: Upper Control Limit (UCL) = A ; Lower Control Limit (LCL) = Use 2-decimal accuracy for the final answer, e.g., 0.12, when necessary. A/ Question 6 (4 points) The process is in statistical control. This statement is cannot tell whether it is true or false; more information is needed. false true

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