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    Paired t test for stress before and after taking a drug

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    A researcher wants to know if there is a difference in people's stress before and after taking a drug. The lower the number, the less their stress level. 30 participants were involved.

    a) What statistical test should be used? Why?
    b) Show all steps to analyze data.
    c) Summarize findings using APA format and including necessary tables and/or figures.

    Before:
    25
    23
    27
    27
    21
    30
    22
    20
    25
    29
    26
    21
    20
    22
    18
    27
    20
    21
    21
    18
    23
    19
    21
    18
    22
    23
    22
    18
    17
    19

    After:
    18
    20
    19
    22
    17
    18
    15
    19
    17
    20
    24
    23
    19
    17
    14
    21
    22
    23
    18
    17
    15
    15
    22
    15
    18
    16
    21
    17
    14
    16.

    © BrainMass Inc. brainmass.com June 4, 2020, 12:03 am ad1c9bdddf
    https://brainmass.com/statistics/students-t-test/paired-ttest-stress-before-after-taking-drug-316899

    Solution Preview

    See the attached file.

    Dependent group t test)
    A researcher wants to know if their is a difference in people's stress before and after taking a drug. The lower the number, the less their stress level. 30 participants were involved.

    a) What statistical test should be used? Why?
    b) Show all steps to analyze data.
    c) Summarize findings using APA format and including necessary tables and/or figures. ...

    Solution Summary

    Step-by-step method for computing test statistic Paired t test for stress before and after taking a drug.

    $2.19

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