using the same format... could someone show me step by step how to answer these questions.

The Fore and Aft Marina is located on the Ohio River near Madison, Indiana. Fore and Aft currently operates a docking facility where only one boat at a time can stop for 935 and servicing. The manager of the Fore and Aft Manina wants to investigate the possibility of enlarging the docking facility so that two boats can stop for gas and servicing simultaneously. Assume that the arrival rate is 4 boats per hour and that the service rate for each server is 8 bosts per hour. (Round your answers to four decimal places. Report time in hours.) (a) What is the probability that the boat dock will be idie? (b) What is the average number of boats that will be wating for service? (c) What is the average time a boat will spend waiting for service? h (d) What is the average time a boat will spend at the dock? h. (e) If you were the manager of Fore and Af Marina, would you be satisfed with the service level your system will be providing? Why of why fiot? Both channels will be empty approximately % of the time. and when customers do show up, they likely to tiave to wait for more than 5 minutes, On the whole, the expansion be worth the needed investrment. Gubser Welding, Incu, operates a welding service for construction and automotive repair jobs, Assume that the arrival of jobs at the company's office can be described by a Poisson probability distribution with an arrival rate of three jobs per 8 -hour day. The time required to complete the jobs follows a normal probability distribution, with a mean time of 2.3 hours and a standard deviation of 1.4 hours. Answer the following questions, assuming that Gubser uses one welder to complete all jobs. (a) What is the mean arrival rate in jobs per hour? (Round your answer to four decimal places.) per hour (b) What is the mean service rate in jobs per hour? (Round your answer to four decimal places.) per hour (c) What is the average number of jobs waiting for service? (Round your answer to four decimal places.) (d) What is the average time (in hours) a job waits before the welder can begin working on it? (Round your answer to two decimal places.) h (e) What is the average number of hours between when a job is received and when it is completed? (Round your answer to two decimal places.) (1) What percentage of the time is Gubser's welder busy? (Round your answer to the nearest whole number.)