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Math Help - Regression equation help

  1. #1
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    Regression equation help

    Use the given data to find the best predicted value of the response variable.
    Eight pairs of data yield r=0.708 and the regression equation y^=55.8+2.79x. Also, y^=71.125. What is the best predicted value of y for x=6.8?

    a.)382.23
    b.)71.13
    c.)74.77
    d.)57.80

    what are the steps??
    Last edited by mr fantastic; June 20th 2009 at 11:48 PM. Reason: Restored question and post title deleted by OP
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  2. #2
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     <br />
55.8+2.79\times 6.8 = 74.77<br />
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