Question

Refer to Problems 11 and 12.
a. At the 5% significance level, do the data provide sufficient evidence to conclude that student-to-faculty ratio is useful as a predictor of graduation rate?
b. Determine a 95% confidence interval for the slope, β1, of the population regression line that relates graduation rate to student-to-faculty ratio. Interpret your answer.
Presume that the variables student-to faculty ratio and graduation rate satisfy the assumptions for regression inferences.


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  • CreatedAugust 13, 2015
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