How many of the observations for means are out of control

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Reference no: EM132222279

Midnight Mocha is a 24-hour café that specializes in coffee drinks. It has a drive-through that is almost fully automated. Each mug of coffee is dispensed by the automated machinery and should provide exactly 12 ounces. Recently, customers have complained that the cups appear to have too much or too little coffee. Midnight Mocha began a quality control program. Every day for 9 days they sampled 5 cups of coffee. They computed the average amount of coffee for the 9 cups and the range of values. Those values are listed below. 1 2 3 4 5 6 7 8 9 Mean 11.93 12.17 12.00 12.08 11.72 11.85 12.15 12.08 12.02 Range 0.19 0.24 0.18 0.19 0.19 0.18 0.07 0.09 0.07 Use formulas with table values to determine control limits. What would be the upper control limit (UCL) and lower control limit (LCL) for the means? (2 decimals) UCL = LCL = What would be the upper control limit (UCL) and lower control limit (LCL) for the range values? (2 decimals) UCL = LCL = How many of the observations for the means are out of control? How many of the nine observations for the ranges are out of control?

Reference no: EM132222279

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