*5. Consider Problem 5, Set l5.6b. To attract more business, the owner of the restaurant will give free soft drinks to any customer who waits more than 5 minutes. Given that a drink costs 50 cents, how much will it cost daily to offer free drinks? Assume that the restaurant is open for 12 hours a day.

6. Show that for the (MIMll ):(FCFSloo/oo), the distribution of waiting time in the queue is Then find Wq from wq(t).

{

I - p, wq(t) = ILP(l _ p)e-(/L-A)l, t = 0 t>O