Exhibit 14-9
A regression and correlation analysis resulted in the following information regarding a dependent variable (y) and an independent variable (x) .
-Refer to Exhibit 14-9. The least squares estimate of b₁ equals

Question

Exhibit 14-9
A regression and correlation analysis resulted in the following information regarding a dependent variable (y) and an independent variable (x) . Exhibit 14-9 A regression and correlation analysis resulted in the following information regarding a dependent variable (y) and an independent variable (x) . -Refer to Exhibit 14-9. The least squares estimate of b<sub>1</sub> equals A) 0.923 B) 1.991 C) -1.991 D) -0.923

-Refer to Exhibit 14-9. The least squares estimate of b₁ equals

Quizplus · Accepted Answer

The formula for the least squares estimate of the slope (b) is b = r(sy/sx). From the exhibit, we can see that r = 0.923, sy = 6.89, and sx = 7. Now we can substitute these values into the formula to calculate the estimate:

b = 0.923(6.89/7) = 1.991

Therefore, the correct answer is B.

Exhibit 14-9 A Regression and Correlation Analysis Resulted in the Following Information