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    Hypotheses test for the United States Department of Labor

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    In 2001, the U.S. Department of Labor reported the average hourly earnings for U.S. production workers to be $14.32 per hour. A sample of 60 production workers during 2003 showed a sample mean of $14.68 per hour. Assuming the population standard deviation σ = $1.55, can we conclude that an increase occurred in the mean hourly earnings since 2001? Use α = .05.

    a) In proper notation, state the hypotheses of this test.

    b) Show your calculation of the test statistic. ______ = ______________

    c) Give the p-value of the test to 4 decimals. p = ________________________
    d) What is the conclusion about the issue in question

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    Hypotheses test
    In 2001, the U.S. Department of Labor reported the average hourly earnings for U.S. production workers to be $14.32 per hour. A sample of 60 production workers during 2003 showed a sample mean of $14.68 per hour. Assuming the population standard deviation σ = $1.55, can we conclude that an increase occurred in the mean hourly earnings since 2001? Use α = .05.

    a) In proper notation, state the hypotheses of this test.

    b) Show your calculation of the test ...

    Solution Summary

    The solution examines a hypothesis test for the United States Department of Labor hourly earnings for production workers.

    $2.19

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