Question
The data in the table is the number of absences for 5 students and their corresponding...
The data in the table is the number of absences for 5 students and their corresponding grade.
| Number of Absences | 5 | 8 | 9 | 10 | 11 |
|---|---|---|---|---|---|
| Grade | 90 | 78 | 74 | 62 | 58 |
Calculate the correlation coefficient, r. Round your answer to three decimal places
Homework Answers
Answer #1
The table given below ,
| Number of Absences(X) | Grade(Y) | X^2 | Y^2 | X*Y | |
| 5 | 90 | 25 | 8100 | 450 | |
| 8 | 78 | 64 | 6084 | 624 | |
| 9 | 74 | 81 | 5476 | 666 | |
| 10 | 62 | 100 | 3844 | 620 | |
| 11 | 58 | 121 | 3364 | 638 | |
| Total | 43 | 362 | 391 | 26868 | 2998 |
From table ,
Therefore , the correlation coefficient r is given by,
Not the answer you're looking for?
Similar Questions
The data in the table is the number of absences for 7 students and their corresponding...
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
Step 4 of 5 :
Construct the 90%
confidence interval for the slope. Round your answers to three
decimal places.
The data in the table is the number of absences for 7 students and their corresponding...
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 data in the table is the number of absences for 7 students and their corresponding...
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
2.5
Step 5 of 5: Construct the 95% confidence interval for the
slope. Round your answers to three decimal places.
The data in the table is the number of absences for 77 students and their corresponding...
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 data in the table is the number of absences for 7 students and their corresponding...
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 77 students and their corresponding...
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...
The data in the table is the number of absences for 7 students
and their corresponding grade.
Number of Absences
0
0
1
6
6
7
8
Grade
3.1
2.7
2.5
2.5
2.3
2.2
1.6
Calculate the sum of
squared errors (SSE). Use the values b0=2.8523 and b1=−0.1095 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...
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 4 of 5 : Construct the 99% confidence interval
for the slope. Round your answers to three decimal places.
Lower endpoint ?
Upper endpoint ?
The data in the table is the number of absences for 7 students and their corresponding...
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...
The data in the table is the number of absences for 7 students
and their corresponding grade. Number of Absences 2 3 6 6 6 7 7
Grade 3.8 2.8 2.4 2.1 2 1.9 1.6 Table Step 4 of 5 : Construct the
80% confidence interval for the slope. Round your answers to three
decimal places.
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 4 minutes ago
asked 5 minutes ago
asked 20 minutes ago
asked 32 minutes ago
asked 33 minutes ago
asked 40 minutes ago
asked 52 minutes ago
asked 1 hour ago
asked 2 hours ago
asked 2 hours ago
asked 2 hours ago
asked 3 hours ago