please use my numbers and show step by step workings... these answers are all wrong. thanks

Problem 18-9 (Algo) One field representative services 5 customers for a computer manufacturer. Customers request assistance at an average (Polsson-distributed) rate of once every 1.5 working days. The field representative can handle an average (Poisson-distributed) of 1.0 call per day. Determine the following: Use Table 1. a. The expected number of customers waiting. (Round "x" value to 2 decimal places. Round your answer to 3 decimal places.) 2000 Expected number of customers waiting Turing b. The average length of time customers must wait from the initial request for service until the service has been completed. (Round your answer to 2 decimal places.) 2.00 days Average length of time c. The percentage of time the service rep will be idle. (Round your answer to 1 decimal place.) 33.3 Percentage of idle time d. How much your answer to part a would be reduced if a second field rep were added? (Round your answer to 3 decimal places.) Reduced number of customer(s) 0.083