Hi, I need help with the following problem:

Please show the work. Thanks!

Q1) In a manufacturing system parts arriving at the rate of one part per minute exponentially distributed. In this system two alternatives are being tested: In Alternative A, two operators work on a part at the same part and it is finished in one minute exponentially distributed. In alternative B two operators are working in two parallel stations. Parts are transferred to each operator randomly (50% each). Processing time for each part is UNIF(1,3). The system works 8 hours per day. To minimize the randomness, the simulation model will work for 10 replications. Confidence level 90%. The performance measures include number of parts out of the system. Which alternative is preferred