(Solution Library) (10) Using Excel, prepare a linear regression equation for the following data and use it for prediction. A random sample of study times for 12
Question: (10) Using Excel, prepare a linear regression equation for the following data and use it for prediction.
A random sample of study times for 12 students tracks hours of study for their advanced tax exam and the percentage grades they subsequently earned on their tax exam. Assume that study times have been compiled over a weekend.
| Hours | 10 | 16 | 12 | 11 | 9 | 15 | 14 | 13 | 9 | 10 | 11 | 12 |
| Grade | 98 | 90 | 85 | 92 | 75 | 95 | 90 | 85 | 70 | 85 | 80 | 93 |
- (3) Paste your printout here, or attach it to this assignment.
| Coefficients | Standard Error | t Stat | P-value | Lower 95% | Upper 95% | |
| Intercept | 63.92775 | 11.70144 | 5.463239 | 0.000276 | 37.85532 | 90.00017 |
| Hours | 1.907514 | 0.97231 | 1.961837 | 0.078197 | -0.25893 | 4.073957 |
(b) (4) Compose the prediction equation.
(c) (3) Use the regression equation to predict the grade of a student who takes the same exam the following semester after having studied 12 hours for it.
Deliverable: Word Document 