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Calcium hardness is measured hourly for a public swimming pool. Data (in ppm) for the last 32 hours are shown in Table. a. Set up

Calcium hardness is measured hourly for a public swimming pool. Data (in ppm) for the last 32 hours are shown in Table. a. Set up a moving range control chart and a control chart for individuals using the data. Is the process in statistical control? b. Estimate the mean and standard deviation
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1. Calcium hardness is measured hourly for a public swimming pool. Data (in ppm) for the last 32 hours are shown in Table. a. Set up a moving range control chart and a control chart for individuals using the data. Is the process in statistical control? b. Estimate the mean and standard deviation

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