Twenty-five samples, each of size 5, were selected from a process that was in control. Thesum of all the data collected was 677.5 pounds.a. what is an estimate of the process mean (in terms of pounds per unit) when theprocess is in control?b. Develop the x control chart for this process if samples of size 5 will be used. Assumethat the process standard deviation is .5 when the process is in control, and that themean of the process is the estimate developed in part (a).

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.