Homework SourseThompson Photo Works purchased several new highly sophistica
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 the length of service as an operator (in years) important? In order to explore further the factors needed to estimate performance on the new processing machines, four variables were listed:
Thirty employees were selected at random. Data were collected for each, and their performances on the new machines were recorded. A few results are:
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 6 years and scored 205 on the mechanical aptitude test. Carl’s prior on-the-job performance rating is 85, and he is 22 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 the length of service as an operator (in years) important? In order to explore further the factors needed to estimate performance on the new processing machines, four variables were listed: |
Solution
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 the length of service as an operator (in years) important? In order to explore further the factors needed to estimate performance on the new processing machines, four variables were listed:
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 selected at random. Data were collected for each, and their performances on the new machines were recorded. A few results are:
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
115
9
370
126
46
Sue Trythall
119
10
384
122
26
The equation is:
= 11 + 0.5X1 + 0.286X2 + 0.312X3 + 0.008X4
a.
What is this equation called?
(Click to select)Multiple regression equation
b.
How many dependent and independent variables are there?
(Click to select)One dependent, (Click to select)Four independent
c.
What is the number 0.312 called?
(Click to select)Regression coefficient
d.
As age increases by one year, how much does estimated performance on the new machine increase? (Round your answer to 3 decimal places.)
0.008
e.
Carl Knox applied for a job at Photo Works. He has been in the business for 6 years and scored 205 on the mechanical aptitude test. Carl’s prior on-the-job performance rating is 85, and he is 22 years old. Estimate Carl’s performance on the new machine. (Round your answer to 3 decimal places.)
Y = 11 + 0.5*6 + 0.286*205 + 0.312*85 + 0.008*22
=99.326
Estimated Carl’s performance on the new machine = 99.326
| 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 the length of service as an operator (in years) important? In order to explore further the factors needed to estimate performance on the new processing machines, four variables were listed: |
