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21 October, 16:06

A quality-conscious disk manufacturer wishes to know the fraction of disks his company makes which are defective. Step 1 of 2 : Suppose a sample of 1475 floppy disks is drawn. Of these disks, 147 were defective. Using the data, estimate the proportion of disks which are defective. Enter your answer as a fraction or a decimal number rounded to three decimal places.

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  1. 21 October, 18:59
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    Answer: Proportion of defective disk based on the given information is 0.10

    Step-by-step explanation:

    Given the following;

    Sample size (s) = 1475

    The sample size refers to the number of floppy disk drawn from the entire population of floppy disks available

    Number of Defective (x) = 147

    Proportion of defective disk can be calculated using;

    Proportion (p) = Number of defective disk (x) : sample size (s)

    p = 147 : 1475

    p = 0.09966

    p = 0.09966

    p = 0.10
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