STATISTICAL TECHNIQUES AND TOOLS
REGRESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If the slope of the regression equation y = bo + b1x is positive, then;
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as x increases y decreases
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as x increases so does y
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Either a or b is correct
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as x decreases y increases
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Explanation:
Detailed explanation-1: -ŷ = b0 + b1x where: b0 is a constant, b1 is the regression coefficient, x is the value of the independent variable, and ŷ is the predicted value of the dependent variable.
Detailed explanation-2: -b0 is the intercept of the regression line; that is the predicted value when x = 0 . b1 is the slope of the regression line.
Detailed explanation-3: -Answer and Explanation: According to the definition of the equation of regression analysis, the Y-intercept represents the predicted value of Y when X = 0.
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