Which of the following is the correct procedure order to obtain a better multipl

Question

Which of the following is the correct procedure order to obtain a better multiple linear regression function after Excel operation? a. Check r^2 (Good fit or not) rightarrow F test rightarrow t test rightarrow Check Multicollinearity problem b. F test rightarrow t test rightarrow Check r^2 (Good fit or not) rightarrow Check Multicollinearity problem c. Check r^2 test rightarrow Check r^2 (Good fit or not) rightarrow Check Multicollinearity problem d. Check Multicollinearity problem rightarrow t test rightarrow F test rightarrow Check r^2 (Good fit or not) Which of the following statement about constructing an estimated regression function is correct? a. In order to get an accurate estimated regression equation for prediction, we should add independent variables as many as possible. b. When the coefficient of determination is greater than 0.8, we can apply the estimated regression equation for population without hypothesis testing for significance. c. No matter how great the coefficient of determination is, we cannot apply a regress, on equation for prediction if it cannot pass the hypothesis testing for significance. d. Second-order regression mode, is always better than linear regression mode.. Which of the following is NOT the advantage of exponential (log-linear) regression model? a. It can always obtain a higher r^2 (coefficient of determination) compared with the other types of model. b. In the log-linear form, the coefficients of independent variable show percentage impact on dependent variable from one percent change of independent variable. c. It may fit the data well before we can tell the relationship between dependent variable and independent variable. d. None of the above.

Explanation / Answer

which of the following statements are true

9 ) option c

10)option a

11) option d

the following are options

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