Question

The data in the table is the number of absences for 77 students and their corresponding grade.

Number of Absences | 0 | 2 | 3 | 5 | 5 | 6 | 7 |
---|---|---|---|---|---|---|---|

Grade | 3.8 | 3.7 | 3.5 | 2.4 | 1.7 | 1.7 | 1.5 |

Step 1 of 5:

Calculate the sum of squared errors (SSE). Use the values b0=4.1811 and b1=−0.3917 for the calculations. Round your answer to three decimal places.

Step 2 of 5:

Calculate the estimated variance of errors, s2e . Round your answer to three decimal places.

Step 3 of 5:

Calculate the estimated variance of slope, s2b1 . Round your answer to three decimal places

Step 4 of 5:

Construct the 80% confidence interval for the slope. Round your answers to three decimal places.

Step 5 of 5:

Construct the 95% confidence interval for the slope. Round your answers to three decimal places.

Answer #1

Step 1 of 5: Calculate the sum of squared errors (SSE) =0.806

Step 2 of 5: Calculate the estimated variance of errors, s2e =0.161

Step 3 of 5: Calculate the estimated variance of slope, s2b1=0.004

Step 4 of 5: Construct the 80% confidence interval for the slope =-0.490 , -0.293

Step 5 of 5: Construct the 95% confidence interval for the slope.=-0.564 , -0.220

The data in the table is the number of absences for 7 students
and their corresponding grade
Number of Absences
0
2
5
6
7
7
8
Grade
3.8
3.8
3.5
2.8
2.4
2.2
1.9
Step 1 of
5:
Calculate the sum
of squared errors (SSE). Use the values b0=4.1353 and b1=−0.2442
for the calculations. Round your answer to three decimal
places.
Step 2 of 5:
Calculate the estimated variance of errors, s^2e. Round your
answer to three decimal places....

The following data give the number of hours 1010 students spent
studying and their corresponding grades on their midterm exams.
Hours Studying
0
1.5
2
2.5
5
5
5
5
5.5
6
Midterm Grades
63
68
69
73
76
80
86
91
93
98
Step 1 of 5: Calculate the sum of squared errors (SSE). Use the
values b0=60.2000 and b1=5.2000 for the calculations. Round your
answer to three decimal places.
Step 2 of 5: Calculate the estimated variance of...

The data in the table is the number of absences for 77 students
and their corresponding grade.
Number of Absences
2
4
4
5
6
7
7
Grade
3.7
3.5
3.4
3.2
3
2.4
2
Step 2 of 5 :
Calculate the estimated variance of errors, s2e. Round your
answer to three decimal places.

The following data give the number of hours 5 students spent
studying and their corresponding grades on their midterm exams.
Hours Studying
1
1
1
2
5
Midterm Grades
85
86
91
96
100
Step 4 of 5: Construct the 95% confidence
interval for the slope. Round your answers to three decimal
places.
Step 5 of 5: Construct the 99% confidence
interval for the slope. Round your answers to three decimal
places.
I got help with steps 1-3 already, if...

The following data give the number of hours 5 students spent
studying and their corresponding grades on their midterm exams.
Hours Studying
0
1
1
5
5
Midterm Grades
64
66
70
91
91
Step 1 of 5: Calculate the sum of squared errors (SSE). Use the
values b0=63.0344 and b1=5.5690 for the calculations. Round your
answer to three decimal places.
Step 2 of 5: Calculate the estimated variance of errors, se2.
Round your answer to three decimal places.
Step...

The data in the table is the number of absences for 77 students
and their corresponding grade.
Number of Absences
2
4
4
5
6
7
7
Grade
3.7
3.5
3.4
3.2
3
2.4
2
Step 3 of 5 :
Calculate the estimated variance of slope, s^2 b1. Round your
answer to three decimal places.

The data in the table is the number of absences for 7 students
and their corresponding grade.
Number of Absences
1
2
3
3
6
7
7
Grade
3.7
3.7
3.5
3.1
2.8
2.5
1.7
Calculate the estimated variance of slope, s2b1. Round your
answer to three decimal places.

The data in the table is the number of absences for 7 students
and their corresponding grade.
Number of Absences
3
4
4
6
6
7
8
Grade
3.9
3.8
3.2
3
2.8
2.8
2.52
Step 1 of 5 : Calculate the sum of squared errors
(SSE). Use the values b0=4.6102 and b1=−0.2703 for the
calculations. Round your answer to three decimal places.

The data in the table is the number of absences for 7 students
and their corresponding grade. Number of Absences 1 3 4 4 5 6 6
Grade 4 3.6 2.8 2.7 2.6 2.4 1.5 Table Step 3 of 5 : Calculate the
estimated variance of slope, s2b1. Round your answer to three
decimal places.

The following data give the number of hours 55 students spent
studying and their corresponding grades
Hours Studying
33
33
44
55
55
Grades
72
74
74
75
79
Step 1 of 5: Calculate the sum of squared errors (SSE). Use the
values b0=66.8000 and b1=2.0000 for the calculations. Round your
answer to three decimal places.
Step 2 of 5: Calculate the estimated variance of errors, s^2e.
Round your answer to three decimal places.
Step 3 of 5: Calculate the...

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