Question

Thompson Photo Works purchased several new, highly sophisticated 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 a machine operator important? To further explore the factors needed to estimate performance on the new machines, four variables were listed: X1 = Length of time employee was a machinist X2 = Mechanical aptitude test score X3= Prior on-the-job rating X4= Age Performance on the new machine is designated as Y Thirty machinists were selected at random. Data were collected for each, and their performances on the new machines were recorded. A few results are as follows: Prior Mechani cal Apt On-the-Job Performance, Leng th of Time as a achinist, X1 Performance Age, X4 Score, on New Machine, P Name Kosin Sue Annis 4 316 115 109 The equation is: Y 11.8 0.5X1+0.297X2 + 0.116.X30.007X4

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

Estimated performance = ?   

Answer 1

As age increases by 1 year, the estimated performance on the new machine increases by 0.007.