Given the linear regression output of Page 465, Exercise 17 (you may also refer

Question

Given the linear regression output of Page 465, Exercise 17 (you may also refer to the answer given on Page A-136), interpret the regression coefficient 4.681 of AVG. Hint: you should include both the interpretation of the value 4.681 and the interpretation of its p- value. 17. Dean Parmalee (A-12) wished to know if the year-end grades assigned to Wright State University Medical School students are predictive of their second-year board scores. The following table shows, for 89 students, the year-end score (AVG, in percent of 100) and the score on the second-year medical board examination (BOARD) Ordinary Least Squares Regression N*-89 -BOARD: N° -89 Mean Diff p-value 95% CI AVG4.681 p

Explanation / Answer

The coefficient of 4.681 can be interpreted as ' For a unit increase in the year-end score, the second-year medical board examination score increases by 4.681 units'

The p-value < .001 and hence the variable is statistically significant

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