hompson 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? 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: Performance on New Machine, Length of Time in Industry, Mechanical Aptitude Score, Prior On-the-Job Performance, Age, Name y x1 x2 x3 x4 Mike Miraglia 111 6 300 129 45 Sue Trythall 115 10 327 121 26 The equation is: yˆy⁢^⁢ = 10.8 + 0.7x1 + 0.386x2 + 0.112x3 + 0.001x4 d. As age increases by one year, how much does estimated performance on the new machine increase? (Round your answer to 3 decimal places.) The estimated performance increases by__________ e. Carl Knox applied for a job at Photo Works. He has been in the business for 3 years and scored 310 on the mechanical aptitude test. Carl’s prior on-the-job performance rating is 95, and he is 60 years old. Estimate Carl’s performance on the new machine. (Round your answer to 3 decima

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

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? 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:

	Performance on New Machine,	Length of Time in Industry,	Mechanical Aptitude Score,	Prior On-the-Job Performance,	Age,
Name	y	x₁	x₂	x₃	x₄
Mike Miraglia	111		6		300	129	45
Sue Trythall	115		10		327	121	26

The equation is:
yˆy⁢^⁢ = 10.8 + 0.7x₁ + 0.386x₂ + 0.112x₃ + 0.001x₄

_{d. As age increases by one year, how much does estimated performance on the new machine increase? (Round your answer to 3 decimal places.)}

_{The estimated performance increases by__________}

e. Carl Knox applied for a job at Photo Works. He has been in the business for 3 years and scored 310 on the mechanical aptitude test. Carl’s prior on-the-job performance rating is 95, and he is 60 years old. Estimate Carl’s performance on the new machine. (Round your answer to 3 decimal places.)

Estimated Performance____________

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