The milling machine in the fabrication department of your company produces a very important par for the products you sell. You are given the following historical data on the machine (from a SAMPLE of n = 25 weeks): Machine Breakdowns/week Number of parts Produced/week (X) average # of machine breakdowns/week: X bar 50 = (Y) average # of parts produced/week: Y bar 170 = standard deviation of # of machine breakdowns/week: Sx-15 n = 25 standard deviation of # of parts produced/week: Sy = 40 n = 25 What is your best guess for the typical number of parts produced by this machine in a week? 0.000