STATISTICAL TECHNIQUES AND TOOLS
REGRESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The equation of a least squares regression line is given by = 1.6 + 9.4x. Find the residual of the point (4, 4).
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0.0
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4.0
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19.6
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35.2
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Explanation:
Detailed explanation-1: -The slope of a least squares regression can be calculated by m = r(SDy/SDx). In this case (where the line is given) you can find the slope by dividing delta y by delta x.
Detailed explanation-2: -The formula for simple linear regression is Y = mX + b, where Y is the response (dependent) variable, X is the predictor (independent) variable, m is the estimated slope, and b is the estimated intercept.
There is 1 question to complete.