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The General Widgets Company (GWC) is interested in setting up x-bar and R charts, both with...

The General Widgets Company (GWC) is interested in setting up x-bar and R charts, both with 3 sigma control limits on the net weight of a 100 ounce widget. They have collected 100 samples using the sample size of 9 and found that ?̿=99.95 and ?̅=1.3464. However, they are planning on switching to a sample of size 4. a)Set up the x-bar chart for a sample of size 4. b)Set up the R chart for a sample of size 4. c)What is the average number of samples inspected before a false alarm on either the new x-bar chart or R chart?

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