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Mathematics, 20.07.2021 22:50 iritike3347

A quality-conscious disk manufacturer wishes to know the fraction of disks his company makes which are defective. a. Suppose a sample of 865 floppy disks is drawn. Of these disks, 112 were defective. Using the data, estimate the proportion of disks which are defective.
b. Suppose a sample of 865 floppy disks is drawn. Of these disks, 112 were defective. Using the data, construct the 95% confidence interval for the population proportion of disks which are defective.

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