An operator has determined the percentage of defectives for a machine which she operates. Based on several samples of 75 observations, she found the p-bar to be 10 percent. She wants to set up a control chart using 3 standard deviation control limits.
a.What is the upper control limit for a p-chart?
b.What is the lower control limit for a p-chart?

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The Answer of An operator has determined the percentage of defectives for a machine which she operates. Based on several samples of 75 observations, she found the p-bar to be 10 percent. She wants to set up a control chart using 3 standard deviation control limits.
a.What is the upper control limit for a p-chart?
b.What is the lower control limit for a p-chart?

An Operator Has Determined the Percentage of Defectives for a Machine