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1. The UCL for an R-chart is 46.5575 for samples of size 13 each taken hourly for 21 hours. What is the mean of the

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The UCL for an R-chart is 46.5575 for samples of size 13 each taken hourly for 21 hours. What is the mean of the sample ranges? Table of Control Chart Constants Round answer to 1 decimal place. RFrom samples of size n = 8 taken daily for 20 days from a production lot, the mean of the sample ranges, R = 12, and the lower control limit for the -chart is 119.224. What is the mean of the sample means? Table of Control Chart Constants Round answer to 1 decimal place

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