Question
In: Statistics and Probability
Run a regression analysis on the following data set, where y is the final grade in...
Run a regression analysis on the following data set, where y is the final grade in a math class and x is the average number of hours the student spent working on math each week.
|
Hours/week x |
Grade y |
|---|---|
|
5 |
61 |
| 5 | 55 |
| 8 | 65.2 |
| 8 | 59.2 |
| 10 | 67 |
| 11 | 65.4 |
| 15 | 84 |
| 18 | 94.2 |
| 18 | 100 |
| 20 | 100 |
State the regression equation y = 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 9 hours each week on math? Grade = Round to 1 decimal place.
Solutions
Expert Solution
The regression equation is y = 3.07x + 38.87
Predicted value for the final grade when a student spends an average of 9 hours each week = 3.07*9 + 38.87 = 66.5
orchestra answered 2 years agoRelated Solutions
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explained by the variation in the values of x? Report
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19.1
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119.2
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83.2
62.8
74.3
77.6
72.2
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62.2
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60.5
78.4
66.4
131.3
76.4
113.5
68.5
84.2
81.5
102
77.5
136.3
49
12.2
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