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    Regression analysis

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    What does the symbol

    n
    ∑ Xi
    i =1

    mean? Please provide an example.

    The following sample observations were randomly selected.
    X: 4, 5, 3, 6, 10
    Y: 4, 6, 5, 7, 7
    Determine the coefficient of correlation and the coefficient of determination. Interpret the results.
    The following sample observations were randomly selected.
    X: 5, 3, 6, 3, 4, 4, 6, 8
    Y: 13, 15, 7, 12, 13, 11, 9, 5

    Determine the regression equation.
    Determine the value of Y' when X is 7.

    The following regression equation was computed from a sample of 20 observations:
    Y' = 15 - 5X
    SSE was found to be 100 and SST total 400.
    Determine the standard error of estimate.
    Determine the coefficient of determination.
    Determine the coefficient of correlation. (Caution: Watch the sign!)

    © BrainMass Inc. brainmass.com June 3, 2020, 10:30 pm ad1c9bdddf
    https://brainmass.com/statistics/regression-analysis/regression-analysis-234633

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    Solution Summary

    The solution provides step by step method for the calculation of simple regression model . Formula for the calculation and Interpretations of the results are also included.

    $2.19

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