A company studying the productivity of its employees on a new information system was interested in determining if the age (X) of data entry operators influenced the number of completed entries made per hour (Y). The regression equation isя┐╝= 14.374 - 0.145x. Suppose the actual completed entries per hour for an operator who is 35 years old was 8. The residual is
a. 2.6
b. -2.2
c. -3.5
d. 1.3
e. -1.3
