As age increases by one year, how much does estimated performance on the new machine increase? (Round your answer to 3 decimal places.) Carl Knox applied for a job at Photo Works. He has been in the business for 7 years and scored 280 on the mechanical aptitude test. Carl’s prior on-the-job performance rating is 70, and he is 33 years old. Estimate Carl’s performance on the new machine. (Round your answer to 3 decimal places.)
Thompson Photo Works purchased several new, highly sophisticated processing machines. The production department needed some guidance with respect to qualifications needed by an operator. Is age a factor? Is a person's mechanical aptitude score important? To evaluate the factors needed to estimate performance on the new processing machines, four variables were selected:
x1 = Length of time an employee was in the industry
x2 = Mechanical aptitude test score
x3 = Prior on-the-job rating
x4 = Age
Performance on the new machine is designated y.
Thirty employees were randomly selected and data were collected for each of the variables. A few results follow:
| Name | Performance on New Machine, y |
Length of Time in Industry, x1 |
Mechanical Aptitude Score, x2 |
Prior On-the-Job Performance, x3 |
Age, x4 |
|---|---|---|---|---|---|
| Mike Miraglia | 112 | 4 | 392 | 119 | 41 |
| Sue Trythall | 117 | 5 | 305 | 127 | 30 |
The equation is:
yˆy^ = 10.3 + 0.4x1 + 0.986x2 + 0.212x3 + 0.007x4
As age increases by one year, how much does estimated performance on the new machine increase? (Round your answer to 3 decimal places.)
Carl Knox applied for a job at Photo Works. He has been in the business for 7 years and scored 280 on the mechanical aptitude test. Carl’s prior on-the-job performance rating is 70, and he is 33 years old. Estimate Carl’s performance on the new machine. (Round your answer to 3 decimal places.)
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