Question
Variables in the Equation B S.E. Wald df Sig. Exp(B) Step 1 a The respondent has children(1) 1.641 .813 4.081 1 .043 5.163 The respondent
Variables in the Equation B S.E. Wald df Sig. Exp(B) Step 1a The respondent has children(1) 1.641 .813 4.081 1 .043 5.163 The respondent viewed the advertisement(1) 1.106 .562 3.867 1 .049 3.022 Constant -2.700 .819 10.859 1 <.001 .067 a. Variable(s) entered on step 1: The respondent has children, The respondent viewed the advertisement.
| Variables in the Equation | |||||||
| B | S.E. | Wald | df | Sig. | Exp(B) | ||
| Step 1a | The respondent has children(1) | 1.641 | .813 | 4.081 | 1 | .043 | 5.163 |
| The respondent viewed the advertisement(1) | 1.106 | .562 | 3.867 | 1 | .049 | 3.022 | |
| Constant | -2.700 | .819 | 10.859 | 1 | <.001 | .067 | |
| a. Variable(s) entered on step 1: The respondent has children, The respondent viewed the advertisement. |
Based on the table above: Which variables are significant predictors of whether or not the consumer purchased the cereal? Hint: p-value less than .05suggests that the variable is a significant predictor. Now look at the "Exp()" column of the "Variables in the Equation" model (for the 2nd analysis only.) This column gives the Odds Ratio for each variable. Give the Odds Ratio for each variable and interpret. (Ignore the "Constant" row.)
Based on both of the tables below: What was your initial model? Why is logistic regression necessary? Which variables did you remove and what criteria did you use to make that decision? State p-values appropriately. What was your reduced model? Which variables were significant predictors of whether or not the consumer purchased the cereal? What criteria did you use (state p-values). State the odds ratio of each significant predictor variable and interpret it. Give the results in a non-statistical way. What decisions might be made based on these results? How will the company that hired you to use the results? What concerns did you have about the study? What might you recommend for a future study?
| Variables in the Equation | |||||||
| B | S.E. | Wald | df | Sig. | Exp(B) | ||
| Step 1a | Annual income in thousands of dollars | .014 | .019 | .497 | 1 | .481 | 1.014 |
| The respondent has children(1) | 1.433 | .856 | 2.798 | 1 | .094 | 4.190 | |
| The respondent viewed the advertisement(1) | 1.034 | .572 | 3.271 | 1 | .071 | 2.813 | |
| Constant | -3.016 | .939 | 10.308 | 1 | .001 | .049 | |
| a. Variable(s) entered on step 1: Annual income in thousands of dollars, The respondent has children, The respondent viewed the advertisement. |
| Variables in the Equation | |||||||
| B | S.E. | Wald | df | Sig. | Exp(B) | ||
| The respondent has children(1) | 1.641 | .813 | 4.081 | 1 | .043 | 5.163 | |
| The respondent viewed the advertisement(1) | 1.106 | .562 | 3.867 | 1 | .049 | 3.022 | |
| Constant | -2.700 | .819 | 10.859 | 1 | <.001 | .067 | |
| a. Variable(s) entered on step 1: The respondent has children, The respondent viewed the advertisement. |
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Calculus For Scientists And Engineers Early Transcendentals
Authors: William L Briggs, Bernard Gillett, Bill L Briggs, Lyle Cochran
1st Edition
0321849213, 9780321849212
