Ten samples of a process measuring the number of returns per 100 receipts were taken for a local retail store. The number of returns were 10

Question

Ten samples of a process measuring the number of returns per 100 receipts were taken for a local retail store. The number of returns were 10, 9, 11, 7, 3, 12, 8, 4, 6, and 11. Find the standard deviation of the sampling distribution for the p-bar chart.

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Kennedy 4 weeks 2021-09-22T13:51:18+00:00 1 Answer 0

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    2021-09-22T13:52:38+00:00

    Answer:

    Standard Deviation = 0.0273

    Step-by-step explanation:

    P = Total number of returns / (Sample * Timetaken)

       = 81 / (100 * 10)

        = 0.081

    Standard Deviation = √((P * (1 – P)) / Samples

                                              = √((0.081 * (1 – 0.081)) / 100

                                               = 0.0273

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