Question

The five observations below show the results of a medical study examining the effect of limited sleep on reflexes for a sample of five college students. The first column of the table shows x, a student‘s hours of sleep the night before taking a basic reflex test. The second column shows y, the test score for each of the students.
Applying the least squares criterion produces the estimated regression equation y ˆ = 260 + 24x.
a. For the situation described here, fill in the ANOVA table below:
b. Is there sufficient sample evidence to indicate a useful linear relationship between sleep and test score at the 5% significance level? Explain.


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  • CreatedJuly 16, 2015
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