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.
Step 3 of 5:
Calculate the estimated variance of slope, s^2b1. Round your answer to three decimal places
Step 4 of 5:
Construct the 98% confidence interval for the slope. Round your answers to three decimal places.
Step 5 of 5:
Construct the 80% confidence interval for the slope. Round your answers to three decimal places.
Step 1 of 5:
Calculate the sum of squared errors (SSE)
Step 1 of 5: Calculate the sum of squared errors (SSE) =0.627
Step 2 of 5: Calculate the estimated variance of errors, s^2e =0.125
Step 3 of 5: Calculate the estimated variance of slope, s^2b1=0.002
Step 4 of 5: Construct the 98% confidence interval for the slope= -0.409 , -0.079
Step 5 of 5: Construct the 80% confidence interval for the slope = -0.317 , -0.172
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