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    Develop a Regression Model

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    Student 1 2 3 4 5 6 7 8 9
    1st grade 98 77 88 80 96 61 66 95 69
    final Grade 93 78 84 73 84 64 64 95 76

    A. Develop a regression model that could be used to predict the final average in the course based on the first test grade.

    B. Predict the final average of a student who made an 83 on the first grade.

    C. Give the values r and r2 for this model. Interpret the value of r2 in the context of this problem.

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    https://brainmass.com/statistics/regression-analysis/develop-a-regression-model-96429

    Solution Preview

    Please see the attached files.

    Solution
    a. You can do this by plotting final grade vs. first grade in Excel (see file attached):

    Then use the Fit trendline facility, we have the following regression relationship:
    Final grade = ...

    Solution Summary

    The solution provides detailed explanations and discussion on development of a regression model that could be used to predict the final average in the course based on the first test grade.

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