Question

In: Statistics and Probability

The following data give the number of hours 77 students spent studying and their corresponding grades...

The following data give the number of hours 77 students spent studying and their corresponding grades on their assignments.

Hours Studying 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 b0=79.9375 and b1=4.6250 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 the slope, s2b1. Round your answer to three decimal places.

Step 4 of 5:

Construct the 90% 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

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