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    Change of Variance in Emergency Room Arrivals

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    Emergency room arrivals in a large hospital showed the statistics below for 2 months. At σ = .05, has the variance changed? Show all steps clearly, including an illustration of the decision rule.

    Please use Excel when providing answer.

    © BrainMass Inc. brainmass.com June 3, 2020, 9:30 pm ad1c9bdddf
    https://brainmass.com/statistics/hypothesis-testing/change-variance-emergency-room-arrivals-185079

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    Change of variance in emergency room arrivals is given.

    $2.19

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