(a) Obtain 100 samples of 4 values each from the normal distribution with mean 8 0 and variance 0 16 and their means, variances, and ranges (b) Use these samples for making up a control chart for the mean (c) Use them on a control chart for the standard deviation (d) Make up a control chart for the range (e) Describe quantitative properties of the samples that you can see from those charts (e g , whether the corresponding process is under control, whether the quantities observed vary randomly, etc )

Question: (a) Obtain 100 samples of 4 values each from the normal distribution with mean 8.0 and variance 0.16 and their means, variances, and ranges. (b)

(a) Obtain 100 samples of 4 values each from the normal distribution with mean 8.0 and variance 0.16 and their means, variances, and ranges.

(b) Use these samples for making up a control chart for the mean.

(d) Make up a control chart for the range.

(e) Describe quantitative properties of the samples that you can see from those charts (e.g., whether the corresponding process is under control, whether the quantities observed vary randomly, etc.).

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