Determine the fraction defective in each sample
Using samples of 200 credit card statements, an auditor found the following (see table)
a. Determine the fraction defective in each sample.
b. If the true fraction defective for this process is unknown, what is your estimate of it?
c. What is your estimate of the mean and standard deviation of the sampling distribution of fractions defective for sample of this size?
d. Determine the upper and lower control limits. Is the process in control?
Using samples of 200 credit card statements, an auditor found the following (see table)
a. Determine the fraction defective in each sample.
b. If the true fraction defective for this process is unknown, what is your estimate of it?
c. What is your estimate of the mean and standard deviation of the sampling distribution of fractions defective for sample of this size?
d. Determine the upper and lower control limits. Is the process in control?
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