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:
|Length of |
|The equation is:|
|= 10.9 + 0.2X1 + 0.686X2 + 0.612X3 + 0.008X4|
|a.||What is this equation called?|
|(Click to select)Multiple regression equationMultiple standard error of estimateCoefficient of determination|
|b.||How many dependent and independent variables are there?|
|(Click to select)OneTwoThreeFourFive dependent, (Click to select)OneTwoThreeFourFive independent|
|c.||What is the number 0.612 called?|
|(Click to select)Regression coefficientCoefficient of determinationHomoscedasticityMulticollinearity|
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 9 years and scored 205 on the mechanical aptitude test. Carl?s prior on-the-job performance rating is 85, and he is 27 years old. Estimate Carl?s performance on the new machine. (Round your answer to 3 decimal places.)
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