Question

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 isA company studying the productivity of its employe = 14.374 - 0.145x. Suppose the actual completed entries per hour for an operator who is 35 years old was 8. The residual is

2.6
-2.2
-3.5
1.3
-1.3

Answer 1

Option d

Explanation:

Given that 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).

`y= 14.374 - 0.145x`

Suppose the actual completed entries per hour for an operator who is 35 years old was 8, implies
`x=35`

Estimated
`y =14.374-0.145(35) \\y =9.299`

Residual = Actual - estimated =
`8-9.299\\=-1.299\\=-1.3`