Compute the center line and the upper control limit

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Reference no: EM131952357

Question: A services process is monitored using x and R charts. Eight samples of n = 10 observations have been gathered with the following results:

a. Using the data in the table, compute the center line, the upper control limit, and the lower control limit for the x and R charts.

b. Is the process in control? Interpret the charts.

c. If the next sample results in the following values (2.5, 5.5, 4.6, 3.2, 4.6, 3.2, 4.0, 4.0, 3.6, 4.2), will the process be in control?

Reference no: EM131952357

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