A statistics professor would like to build a model relating student scores on the first test...

A statistics professor would like to build a model relating student scores on the first test to the scores on the second test. The test scores from a random sample of 2121 students who have previously taken the course are given in the table.

Test Scores
Student	First Test Grade	Second Test Grade
1	81	79
2	55	64
3	52	61
4	81	74
5	50	65
6	70	71
7	43	64
8	43	58
9	77	75
10	97	88
11	48	64
12	48	68
13	70	70
14	75	71
15	77	72
16	76	73
17	85	80
18	91	85
19	70	75
20	69	77
21	40	57

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Step 1 of 2 :

Using statistical software, estimate the parameters of the model

Second Test Grade=β0+β1(First Test Grade)+εiSecond Test Grade=β0+β1(First Test Grade)+εi .

Enter a negative estimate as a negative number in the regression model. Round your answers to 4 decimal places, if necessary.

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orchestra answered 2 years ago

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A statistics professor would like to build a model relating student scores on the first test...

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Student	First Test Grade	Second Test Grade
1	81	79
2	55	64
3	52	61
4	81	74
5	50	65
6	70	71
7	43	64
8	43	58
9	77	75
10	97	88
11	48	64
12	48	68
13	70	70
14	75	71
15	77	72
16	76	73
17	85	80
18	91	85
19	70	75
20	69	77
21	40	57

Student	First Test Grade	Second Test Grade
1	81	79
2	55	64
3	52	61
4	81	74
5	50	65
6	70	71
7	43	64
8	43	58
9	77	75
10	97	88
11	48	64
12	48	68
13	70	70
14	75	71
15	77	72
16	76	73
17	85	80
18	91	85
19	70	75
20	69	77
21	40	57

Student	First Test Grade	Second Test Grade
1	81	79
2	55	64
3	52	61
4	81	74
5	50	65
6	70	71
7	43	64
8	43	58
9	77	75
10	97	88
11	48	64
12	48	68
13	70	70
14	75	71
15	77	72
16	76	73
17	85	80
18	91	85
19	70	75
20	69	77
21	40	57