Please sovle all. It's one problem

at normation escription Trosper Tire shop would like to hire a new mechanic to handle all tire changes for customers ordering a new set of tires. Two mechanics applied for the job. One mechanic has limited experience takes 20 minutes to service a customer whereas the other mechanic has more experience can service an average of 4 customers per hour. Assume that customers arrive at the garage at a rate of 2 customers per hour. Assume a Poisson Arrival rate and an exponential service time distribution Complete the table given below for the operating characteristics of the new mechanic: Use 2 decimal places where appropriate. Convert all times into minutes. What is the probability that the new mechanic is idle? What is the average queue longth? What is the average time a customer walts in the system (mins)? What is the average time a customer walts in the line (mins)? What is the probability that an arriving customer has to wait? QUESTION 2 Complete the table given below for the operating characteristics of the experienced mechanic: Uso 2 decimal places where appropriate. Convert all times into minutes. What is the probability that the new mechanic is idle? What is the average queue length? What is the average time a customer waits in the system (mins)? What is the average time a customer waits in the line (mins)? What is the probability that an arriving customer has to wait