1. In regression analysis, the independent variable is a. b. c. d. used to predi
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Question
1. In regression analysis, the independent variable is a. b. c. d. used to predict other independent variables used to predict the dependent variable called the intervening variable None of these answers is correct. 2. Excel'sfunction is used to perform a test of independence. a. -Test: Two Sample for Means b. t-Test: Two Sample Assuming Equal Variances c. CHISQ TEST d. NORM.S.DIST 3. SSE can never be a. larger than SST b. smaller than SST c. equal to 1 d. equal to zero 4. If all the points of a scatter diagram lie on the least squares regression line, then the coefficient of determination for these variables based on this data is a. 0 b. could be any value between-1 and 1 c. either 1 or -1, depending upon whether the relationship is positive or negative d. 1 5. Larger values of r2 imply that the observations are more closely grouped about the a. b. c. d. average value of the independent variables average value of the dependent variable least squares line origin 6. A goodness of fit test is always conducted as a a. upper-tail test b. lower-tail test c. middle test d. None of these alternatives is correct. 7. If the coefficient of determination is equal to 1, then the coefficient of correlation a. must also be equal to 1 b. can be either -1 or+1 c. can be any value between -1 to +1 d. must be -1Explanation / Answer
1. Used to Predict dependent variable
2. t test: Two sample assuming equal variances
3. SSE can never be larger than SST as the SST = SSR+SSE and all three must be positive
4. Coefficient of determination will be 1 as there will be no error
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