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 1 year agoRelated Solutions
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13.7
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43.8
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23.1
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31.3
81.3
48.2
80.1
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r =
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explained by the variation in the values of x? Report
answer as...
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x
y
81
81.3
92.6
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77.8
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89.4
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70.3
38.2
90.2
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42.1
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r =
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x
y
73
16.1
80
14.9
72.5
8.5
55.8
33.6
54.6
23.4
76.6
26.2
74.6
19.1
40.2
40.6
58.7
25.8
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x
y
58.6
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72.1
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119.2
57.4
83.2
62.8
74.3
77.6
72.2
71.8
62.2
46.4
77.2
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86.6
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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for the explanatory variable will give you a value...
Run a regression analysis on the following bivariate set of data with y as the response...
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x
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