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Mathematics, 09.08.2021 20:30 jstyopin

ATM transaction times are being monitored and the following data has been collected. Each sample contained 9 items. Sample Mean Range 1 3.01 .52 2 3.14 .50 3 3.23 .41 4 3.24 .46 5 3.06 .48 6 3.18 .45 Calculate the lower and upper control limits for the range. (Keep three decimal places)

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