Question: 2. Twenty-five samples, each of size 5, were selected from a process that was in control. The sum of all the data collected was 677.5

2. Twenty-five samples, each of size 5, were selected from a process that was in control.

The sum of all the data collected was 677.5 kilograms.

a. What is an estimate of the process mean (in terms of kilograms per unit) when the process is in control?

b. Develop the x control chart for this process if samples of size 5 will be used.

Assume that the process standard deviation is .5 when the process is in control, and that the mean of the process is the estimate developed in part (a).

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