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    Example Hypothesis Testing Problem

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    Suppose a wedding photographer claims he can finish a bride's wedding photos in less than 7 days. You are given the following data from a sample.

    Sample size: 40

    Population standard deviation: 1

    Sample mean: 7.2

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    Solution Preview

    We need to test

    H0: mu>=7
    Ha: mu<7

    Given xbar=7.2, sigma=1, n=40. Using z-statistic, we can ...

    Solution Summary

    This solution provides assistance with the hypothesis testing problem.