Twenty five samples of size 1000 each were drawn from a manufacturing process and the number...
Twenty five samples of size 1000 each were drawn from a manufacturing process and the number of defectives in each sample was counted. The average sample proportion was 0.05. The upper control limit for the p chart is:
Homework Answers
GIVEN:
Sample size 
Average sample proportion 
FORMULA:
The formula for the upper control limit for the p chart is given by,
CALCULATION:
The upper control limit for the p chart is given by,
Thus the upper control limit
for the p chart is 
.
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Twenty five samples of size 1000 each were drawn from a
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eBook Twenty-Six samples of 110 items each were inspected when a process was considered to be operating satisfactorily. In the 26 samples, a total of 135items were found to be defective. a. What is an estimate of the proportion defective when the process is in control? Round your answer to four decimal places. p= b. What is the standard error of the proportion if samples of size 110 will be used for statistical process control? Round your answer to four...
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