Business, 19.03.2021 20:10 tddreviews
A process that produces a bottle of water is considered to be in control regarding the weight in ounces. The table below represents 8 samples of size 4 taken during the process. Samples Sample 1 Sample 2 Sample 3 Sample 4 Sample 5 Sample 6 Sample 7 Sample 8 10 9 13 10 12 10 9 11 8 11 11 10 9 9 8 8 12 10 8 11 11 10 10 9 10 11 10 8 11 8 11 12 Samples MeansSamples Rangesa)If the population process standard deviation is σ = 1, what is the standard deviation of the sampling means σX? b)Find in the table the samples means c)What is the sampling mean X? d)If z = 3, What is the UCLX and LCLX, using σX? Plot the data in X-Chart? e)Find in the table the samples Ranges f)What is the average range of the samples R? g)Let suppose that the population process standard deviation, σ is unknown. If z = 3, What is the UCLX and LCLX, using Mean Factor, A2? Plot the data in X-Chart?
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