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Ryan, Engineer

Category: Calculus and Above

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Experience: B.S. in Civil Engineering

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Hi, I have some more multiple choice questions.
1)The difference

Resolved Question:

Hi, I have some more multiple choice questions. 1)The difference between the observed value of the dependent variable and the value predicted by using the estimated regression equation is the? A)Standard Error B)Residual C)Prediciton interval D)Variance

2)The proportion of the variation in the depednet variable y that is explained by the estimated regression equation is measured by the? A)Correlaton coefficent B)Standard error of the estimate C)Coefficient of determination D)Confidence interval estimate

3)In regression analysis, the independent variable is? A)Used to predict other independent variables B)Used to predict the dependent variable C)Called the interbening variable D)None of these answers is correct

4)Regression analysis is a statistical procedure for developing a mathematical equation that describes how? A)One independent and on or more dependent variables are related B)Several independent and several dependent variables are related C)One dependent and one or more independent variables are related d)None of these answers is correct

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Here are the solutions:

1. B

2. C

3. It's either B or D, depending on the scope of "regression analysis". My first choice would be D, since the "regression analysis" generates the equation that is subsequently used to make predictions. Once you have the equation, the analysis is done, so "the independent variable is used to predict the dependent variable" really isn't included in the regression analysis. If choice D is rejected, then the next choice is B.

4. C

Thanks,

Ryan

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