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    Hypothesis Test

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    Here are heart rates for a sample of 30 students before and after a class break. At alpha = .05, was
    there a significant difference in the mean heart rate? (a) State the hypotheses. (b) State the decision
    rule and sketch it. (c) Find the test statistic. (d) Make a decision. (e) Estimate the p-value and
    interpret it.

    Heart Rate Before and After Class Break:

    Student Before After Student Before After
    1 60 62 16 70 64
    2 70 76 17 69 66
    3 77 78 18 64 69
    4 80 83 19 70 73
    5 82 82 20 59 58
    6 82 83 21 62 65
    7 41 66 22 66 68
    8 65 63 23 81 77
    9 58 60 24 56 57
    10 50 54 25 64 62
    11 82 93 26 78 79
    12 56 55 27 75 74
    13 71 67 28 66 67
    14 67 68 29 59 63
    15 66 75 30 98 82

    © BrainMass Inc. brainmass.com June 4, 2020, 12:15 am ad1c9bdddf
    https://brainmass.com/statistics/hypothesis-testing/hypothesis-test-327882

    Solution Summary

    The solution provides step-by-step method of performing a hypothesis t-test. All the steps of hypothesis testing (formulation of null and alternate hypotheses, selection of significance level, choosing the appropriate test-statistic, decision rule, calculation of test-statistic and conclusion) have been explained and the statistical analysis has been shown in details. The calculations have also been shown in EXCEL for better understanding.

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