Question: Data were collected on a quantitative measure with a subgroup size of three observations. Thirty subgroups were collected, with the following results: x 1,345.4 R209.3

Data were collected on a quantitative measure with a subgroup size of three observations. Thirty subgroups were collected, with the following results:

x 1,345.4 R209.3

a. Determine the Shewhart factors that will be needed if - and R-charts are to be developed.

b. Compute the upper and lower control limits for the R-chart.

c. Compute the upper and lower control limits for the -chart.

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