Question

Number of Absences   Grade
2   3.8
3   2.8
6   2.4
6   2.1
6   2
7   1.9
7   1.6

Step 1 of 5 :  

Calculate the sum of squared errors (SSE). Use the values b0=4.2309b0=4.2309 and b1=−0.3518b1=−0.3518 for the calculations. Round your answer to three decimal places.

Step 2 of 5: Calculate the estimated variance of error

Step 3 of 5: : Calculate the estimate variance of slope

step 4 of 5: construct the 80% confidence interval for the slope

lower endpoint =

upper endpoint=

Answer 1

Step 1 of 5 :   Calculate the sum of squared errors (SSE)=0.354

Step 2 of 5: Calculate the estimated variance of error =0.071

Step 3 of 5: : Calculate the estimate variance of slope =0.003

step 4 of 5: construct the 80% confidence interval for the slope :

lower endpoint = -0.433

upper endpoint= -0.271