Solved: Rapid City Radio Hall shows vintage movies each week. Customers arrive

Question

Rapid City Radio Hall shows vintage movies each week. Customers arrive at the theater line at the rate of 70 per hour. The ticket seller averages 45 seconds per customer, which includes placing validation stamps on customers' parking lot receipts and punching their frequent watcher cards. (Due to these additional services, many customers don't get in until after the feature has started.) 1.) What is the average customer time in the system? (round to 2 decimal places) 2.) What would be the effect on customer time in the system of having a second ticket taker doing nothing but validations and card punching, thereby cutting the average service time to 25 seconds? (round to 3 decimal places) 3.) What would be the effect on customer time in the system of having a second ticket taker doing nothing but validations and card punching, thereby cutting the average service time to 25 seconds? (round to 3 decimal places) 4.) What would be the customer time in the system if a second window was opened with each ticket seller doing all three tasks? Note: Use closest X/u value from the attached Exhibit. Do not round intermediate calculations. Round your answer to 3 decimal places