In: Statistics and Probability
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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