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Using samples of 198 credit card statements, an auditor found the following: Use Table-A. Sample 1 Number with errors 4 Determine the fraction defective in
Using samples of 198 credit card statements, an auditor found the following: Use Table-A. Sample 1 Number with errors 4 Determine the fraction defective in each sample. (Round your answers to 4 decimal places.) Sample 1234 Estimate 2 3 4 2 4 11 Mean Standard deviation Fractio defective b. If the true fraction defective for this process is unknown, what is your estimate of it? (Enter your answer as a percentage rounded to 1 decimal place. Omit the "%" sign In your response.) 0.0202 0.0101 0.0202 0.0556 Z Lower limit Upper limit 27 % c. What is your estimate of the mean and standard deviation of the sampling distribution of fractions defective for samples of this size? (Round your Intermediate calculations and final answers to 4 decimal places.) 2 0.0265 0042 d. What control limits would give an alpha risk of .03 for this process? (Round your Intermediate calculations to 4 decimal places. Round your "z" value to 2 decimal places and other answers to 4 decimal places.)
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