Question: Following are the data on total hours studied over 2 weeks and test score at the end of the 2 weeks from Exercise 14.21. Use

Following are the data on total hours studied over 2 weeks and test score at the end of the 2 weeks from Exercise 14.21. Use Î± = 0.01.

Presuming that the assumptions for regression inferences are met, decide at the specified significance level whether the data provide sufficient evidence to conclude that the predictor variable is useful for predicting the response variable.

x 10 15 12 20 8 16 14 22 92 81 84 74 85 80 84 80

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