Question
Run a regression analysis on the following data set, where yy is the final grade in...
Run a regression analysis on the following data set, where yy is the final grade in a math class and xx is the average number of hours the student spent working on math each week.
| hours/week x |
Grade y |
|---|---|
| 7 | 65.8 |
| 8 | 65.2 |
| 9 | 58.6 |
| 10 | 76 |
| 11 | 77.4 |
| 11 | 64.4 |
| 13 | 70.2 |
| 16 | 98.4 |
| 17 | 91.8 |
| 19 | 100 |
State the regression equation y=m⋅x+by=m⋅x+b, with constants
accurate to two decimal places.
What is the predicted value for the final grade when a student
spends an average of 12 hours each week on math?
Grade = Round to 1 decimal place.
Homework Answers
Answer #1
from above:
Regression equation :y^=3.31x+36.70
b)
predicted value for the final grade =3.31*12+36.70 = 76.4
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