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    Time Study Accuracy: Computing Sample Size

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    Question: A manager who is conducting a time study now needs an accuracy of +/=0.1 minutes, rather than +/=0.2 minutes as in the past. Because of this change in accuracy, the adequate sample size becomes:

    A. 1/4 as large
    B. 1/2 as large
    C. 2x as large
    D. 4x as large
    E. none of the above.

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    Solution Summary

    The solution discusses time study accuracy.