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A quality-conscious disk manufacturer wishes to know the fraction of disks his company makes which are...

A quality-conscious disk manufacturer wishes to know the fraction of disks his company makes which are defective. Step 2 of 2 : Suppose a sample of 715 floppy disks is drawn. Of these disks, 651 were not defective. Using the data, construct the 90% confidence interval for the population proportion of disks which are defective. Round your answers to three decimal places. previous answer is .090

Math   Statistics-And-Probability   
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