The following table shows the number of workdays absent based on the length of employment in years. Determine the linear regression equation.
A) Y' = 7.7107 - 0.6852X
B) Y' = 7.7407 - 0.6852X
C) Y' = 7.7407 + 0.6852X
D) Y' = -7.7407 - 0.6852X

Question

The following table shows the number of workdays absent based on the length of employment in years.   Determine the linear regression equation.
A) Y' = 7.7107 - 0.6852X 
B) Y' = 7.7407 - 0.6852X 
C) Y' = 7.7407 + 0.6852X 
D) Y' = -7.7407 - 0.6852X

Quizplus · Accepted Answer

The linear regression equation is in the form Y' = a + bX, where a is the y-intercept and b is the slope. Using the least squares method, the linear regression equation for the given data is Y' = 7.7407 - 0.6852X. Therefore, the best choice is B.

The Following Table Shows the Number of Workdays Absent Based