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Question
A multiple regression analysis between yearly income (yin $1,000s), college grade point average (x1), age of the individuals (x2), and the gender of the individual (x3; zero representing female and one representing male) was performed on a sample of 10 people, and the following results were obtained using Excel.| ANOVA | ||||
| df | SS | MS | F | |
| Regression | 360.59 | |||
| Residual | 23.91 | |||
| Coefficients | Standard Error | |||
| Intercept | 4.0928 | 1.4400 | ||
| x1 | 10.0230 | 1.6512 | ||
| x2 | 0.1020 | 0.1225 | ||
| x3 | -4.4811 | 1.4400 |
a. Write the regression equation for the above.
b. Interpret the meaning of the coefficient of x3.
c. Compute the coefficient of determination.
d. Is the coefficient of x1significant? Use
= 0.05.e. Is the coefficient of x2significant? Use
= 0.05.f. Is the coefficient of x3significant? Use
= 0.05.g. Perform an Ftest and determine whether or not the model is significant.
Answer
This answer is hidden. It contains 253 characters.
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