Thompson Photo Works purchased several new, highly sophisticated processing mach

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? 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 Performance Length of Mechanical Prior on New Time in Aptitude on-the-Job Machine, Industry, Score, Performance, Age Name Mike Miraglia Sue Trythal 365 300 121 126 13 116 27 The equation is Y10.3 +0.8x 0.786X2 +0.712X3 + 0.008X4 a. What is this equation called? Click to select b. How many dependent and independent variables are there? (Click to select) dependent (Click to select" independent

Explanation / Answer

a)The equation is Multiple Regression Equation with 4 independent or predictor variables and 1 dependent variable.

Note:Multiple regression is an extension of linear regression. It is used when we want to predict the value of a variable based on value of 2 or more other variables.

b) Here X1,X2,X3,X4 are our predictor or independent variables and Y is our predicted or dependent variable.

Y is based on values of X1,X2,X3,X4.

1 Dependent Variable and 4 Independent variable.

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