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    The relationship between two variables

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    Calculate, test, and interpret the relationship between two variables using the correlation coefficient.

    The following sample observations were randomly selected.

    X: 5 4 4 5 11
    Y: 5 7 4 6 8

    Picture Click here for the Excel Data File

    a. Determine the regression equation. (Round your answers to 3 decimal places.)

    formula20.mml = + X

    b. Determine the value of formula432.mml when X is 8. (Round your answer to 3 decimal places.)


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    Solution Preview

    Hi there,

    Thanks for letting me work on your post. Here is my explanation:

    a. mean of x=(5+4+4+5+11)/5=5.8
    mean ...

    Solution Summary

    This solution discusses the relationship between two variables.