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A Retail Store Charts the Number of Customer Returns Per

Question 72

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A retail store charts the number of customer returns per day.Under normal conditions, the store expects 10 customer returns per day.During the past 10 days, the observed customer returns were as follows: 12, 9, 8, 14, 8, 13, 8, 10, 9, 11.Using 99.7% control limits, is the process under control?

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The process is in co...

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