Samples of package orders were taken at the Altodiez Package Co. to determine if the orders were prepared correctly. The number of orders with errors for each of the 25 days are given in the Problem 4 Data. Two hundred orders are inspected each day. Compute the control limits for a p-chart using the appropriate formulas, and then verify your calcul

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Samples of package orders were taken at the Altodiez Package Co. to determine if the orders were prepared correctly. The number of orders with errors for each of the 25 days are given in the Problem 4 Data. Two hundred orders are inspected each day. Compute the control limits for a p-chart using the appropriate formulas, and then verify your calculations using the p-chart Excel template.

1.) Examine the p-chart and interpret the results.


# of letters with errors	Sample Size	p (Sample proportion nonconforming)	LCLp	Center Line	UCLp
3	200
3	200
3	200
4	200
7	200
8	200
3	200
3	200
6	200
8	200
7	200
7	200
3	200
2	200
3	200
7	200
8	200
2	200
7	200
5	200
3	200
5	200
6	200
7	200
8	200

P-bar
Estimate of Std. Div (S p-bar)
UCL
LCL

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