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 *3 = Prior on-the-job rating X4 - Age Performance on the new machine is designated : 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 Machine Length of Time in Industry, Mechanical Aptitude Score, X2 363 Prior On-the-Job Performance, Age 110 Mike Miraglia Sue Trythall 122 124 39 371 The equation is 9 - 117+0.6x10.586x2 +0512x3 +0.003x4 . How many dependent and independent variables are there? dependent, independent c. What is the number 0.586 called? Regression coefficient O Coefficient of determination O Homoscedasticity O Multicollinearity 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 performane increases by e. Carl Knox applied for a job at Photo Works. He has been in the business for 7 years and scored 300 on the mechanical aptitude test. Carl's prior on-the-job performance rating is 85, and he is 66 years old. Estimate Carl's performance on the new machine (Round your answer to 3 decimal places.) Estimated performane