Question

1. The regression equation relating attitude rating (x) and job performance rating (y) for 30 randomly selected employees of a supermarket is y = 11.7 + 1.02x. Predict the job performance rating for an employee whose attitude rating is 59. Round your answer to two decimal places. (2 points)

a. 80.1

b. 71.9

c. 591

d. 691.3

Answer 1

The estimated linear regression equation is

where

= value of the job performance rating (Dependent variable )

= attitude rating (independent variable)

Now predicted value of y when x = 59 is

   (Rounded to two decimal places)

Correct option - b. 71.9

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