Exhibit 12-9
A regression and correlation analysis resulted in the following information regarding a dependent variable (y) and an independent variable (x) .

-Refer to Exhibit 12-9. The least squares estimate of b₁ equals

Question

Exhibit 12-9
A regression and correlation analysis resulted in the following information regarding a dependent variable (y) and an independent variable (x) .
Exhibit 12-9 A regression and correlation analysis resulted in the following information regarding a dependent variable (y) and an independent variable (x) . -Refer to Exhibit 12-9. 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 12-9. The least squares estimate of b₁ equals

Quizplus · Accepted Answer

The least squares estimate of the slope (b) is calculated using the formula b = r(sy/sx), where r is the correlation coefficient and sy/sx is the ratio of the standard deviation of y to that of x. Plugging in the given values, we get b = 0.581(2.13/1.07) = 1.991 (rounded to three decimal places). Therefore, the answer is B.

Exhibit 12-9 A Regression and Correlation Analysis Resulted in the Following Information