Thompson Photo Works purchased several new, highly sophisticated processing machines. The production department needed some guidance with respect to qualifications needed by an operator. ls 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 onthejob 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 on New Length of l:I.'ime in Mechanical Aptitude Prior On- theJob Machine , Industry , Score , Per formance , Age , Name y X1 2:; x3 34 Mike Miraglia 115 8 340 130 31 Sue Trythall 116 8 325 119 21 The equation is: 37 = 10.1 + 0.2x1 + 0.386x2 + 0.912x3 + 0.005x4 d. As age increases by one year, how much does estimated performance on the new machine increase? (Round your answer to 3 decimal places.) e. Carl Knox applied for ajob at Photo Works. He has been in the business for 11 years and scored 350 on the mechanical aptitude test. Carl's prior on-thejob performance rating is 85, and he is 69 years old. Estimate Carl's performance on the new machine. (Round your answer to 3 decimal places.)