Question
In: Statistics and Probability
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 | 3 | 3 | 4 | 4 | 4 | 6 |
|---|---|---|---|---|---|---|---|
| Grade | 3.9 | 3.7 | 3.7 | 2.7 | 2.5 | 1.8 | 1.8 |
Calculate the estimated variance of slope, s^2b1. Round your answer to three decimal places.
Construct the 90% confidence interval for the slope. Round your answers to three decimal places.
Construct the 90% confidence interval for the slope. Round your answers to three decimal places.
Construct the 95% confidence interval for the slope. Round your answers to three decimal places.
Construct the 99% confidence interval for the slope. Round your answers to three decimal places.
Construct the 80% confidence interval for the slope. Round your answers to three decimal places.
Construct the 85% confidence interval for the slope. Round your answers to three decimal places.
Solutions
Expert Solution
estimated variance of slope, s^2b1 =0.044
90% confidence interval for the slope= -1.125 , -0.284
95% confidence interval for the slope = -1.241 , -0.168
99% confidence interval for the slope = -1.546 , 0.138
80% confidence interval for the slope = -1.012 , -0.396
85% confidence interval for the slope = -1.059 , -0.349
orchestra answered 2 years agoRelated Solutions
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 4 6 7 8
Grade 5 4.5 4 3.5 2.5 2 1
Step 1 of 3: Calculate the correlation coefficient, r. Round
your answer to six decimal places. Step 2 of 3: Determine if r is
statistically significant at the 0.01 level. Step 3 of 3: Calculate
the coefficient of determination, r2 . Round your answer to...
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 3 5 5 6 6
Grade 3.8 3.6 3.2 2.5 2.1 2 1.7 Table
Step 1 of 5 : Calculate the sum of squared errors (SSE). Use the
values b0=4.8669 and b1=−0.5056 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...
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 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 0 1 2 3 5 6 7
Grade 4.5 4 3.5 3 2.5 2 1.5
Step 1 of 3: Calculate the correlation coefficient, r. Round
your answer to six decimal places.
Calculate the coefficient of determination, r2r2. Round your
answer to three decimal places.
Determine if r is statistically significant at the 0.050.05
level.
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
1
2
3
3
6
7
Grade
3.9
3.8
3.7
3.5
2.7
2.4
2
Step 1 of 5: Calculate the sum of squared errors (SSE). Use the
values b0=4.1440 and b1=−0.3047 for the calculations. Round your
answer to three decimal places.
Step 2 of 5: Calculate the estimated variance of errors, Round
your answer to three decimal places.
Step...
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
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55
66
66
66
77
88
Grade
3.93.9
3.83.8
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1.91.9
Step 1 of 5 : Calculate the sum of squared errors (SSE). Use the
values b0=5.4276b0=5.4276 and b1=−0.4413b1=−0.4413 for the
calculations. Round your answer to three decimal places.
step2: Calculate the estimated variance of errors, se2. Round
your answer to three decimal places.
step3 :...
The data in the table is the number of absences for 7 7 students and their...
The data in the table is the number of absences for 7 7 students
and their corresponding grade. Number of Absences 4 4 4 4 6 6 6 6 6
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Table Copy Data Step 1 of 5: Calculate the sum of squared errors
(SSE). Use the values b 0 =5.8278 b0=5.8278 and b 1 =−0.5537
b1=−0.5537 for the calculations. Round...
The following data gives the number of hours 7 students spent studying and their corresponding grades...
The following data gives the number of hours 7 students spent
studying and their corresponding grades on their exams.
Hours Spent Studying
0
1
2.5
3
4
4.5
5.5
gRADES
60
69
72
75
78
81
90
Step 1 of 3:
Calculate the correlation coefficient, r. Round your answer to
six decimal places.
Step 2 of 3:
Determine if r is statistically significant at the 0.050.05
level.
Step 3 of 3:
Calculate the coefficient of determination, r2r2. Round your
answer...
The following data give the number of hours 7 students spent studying and their corresponding grades...
The following data give the number of hours 7 students spent
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0.5
1
1
1.5
2
2.5
5
Grades
79
81
82
90
94
97
99
Step 1 of 5:
Calculate the sum of squared errors (SSE). Use the values
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three decimal places.
Step 2 of 5:
Calculate the estimated variance of errors, s2e. Round your
answer to three decimal...
The following data gives the number of hours 7 students spent studying and their corresponding grades...
The following data gives the number of hours 7 students spent
studying and their corresponding grades on their midterm exams.
Hours Spent Studying 1 1.5 3 3.5 4 4.5 5.5 Midterm Grades 60 63 75
78 84 87 93 Step 2 of 3 : Determine if r is statistically
significant at the 0.01 level.
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