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    Data Generated During pre/post Treatment Surveys

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    Inspection of student data generated during pre/post treatment surveys shows that among 10 subjects, 7 had higher scores after an experimental treatment, 2 had lower scores, and 1 score did not change. Using the traditional method of hypothesis testing, we need to determine if the experimental course has any effect. Use an alpha level of .01. If the computed test statistic is 2.36, what is the critical value (2 decimal places of significance, and did the experimental course make a difference (Yes or No))?

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    dof = n - 1 = 10 - 1 = 9, alpha = 0.01

    Critical value of the test statistic (t- score, ...

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    Neat, step-by-step solution is provided for data generated during pre/post treatment surveys.