Questions 19-21. Two manufacturing processes can be used to produce computer chips which regulate engine performance in new cars: Process A and Process B. The time required for Process A to produce one computer chip is uniformly distributed between 3.0 and 5.5 minutes; the time required for Process B is uniformly distributed between 2.6 and 5.3 minutes. 19. What percentage of chips are produced in less than 4 minutes with Process A? (a) 50.00 (b) 49.15 (c) 60.00 (d) 51.85 (e) None of the answers is correct to the second decimal place. 20. What percentage of chips are produced in less than 4 minutes with Process B? (a) 50.00 (b) 49.15 (c) 60.00 (d) 51.85 (e) None of the answers is correct to the second decimal place. 21. The chip maker has two manufacturing goals: that at least 95% of chips are produced in less than 5.4 minutes, and that average time required to produce chips is no more than 4 minutes. Which processes satisfy these goals? (a) Only Process A satisfies these goals