Exam 13: Statistical Quality Control

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You want to determine the upper control line for a p-chart for quality control purposes. You take several samples of a size of 100 items in your production process. From the samples, you determine the fraction defective is 0.05 and the standard deviation is 0.01. If the desired confidence level is 99.7 percent, which of the following is the resulting UCL value for the line?

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Designers establish specifications that solely define the target value only.

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The value for "z" used in quality control charts is based on the degree of confidence you want to have in the resulting UCL and LCL values.

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You have just used the capability index (Cpk) formulas to compute the two values "min [2, 2.5]." Which of the following is the proper interpretation of these numbers?

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