Question: What is the estimate of the sample average range based upon this limited sample? 0.00 2.00 1.00 1.50 1.40 6. What are the x-bar chart

What is the estimate of the sample average range based upon this limited sample? 0.00 2.00 1.00 1.50 1.40 6. What are the x-bar chart upper and lower control limits? 9.945 and 7.775 9.72 and 7.98 10.01 and 7.15 9.67 and 7.93 Four samples of five units each were taken at random two-hour intervals. Sample 1 Observation number 1 2 3 4 5 9 10 9 8 7 9 9 8 9 9 10 10 9 9 9 9 9 2 3 000 000 4 2

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