Four-part assertion messages are used to communicate both positive and negative messages

Joanne Spitz gives a landlord $100 to hold an apartment for a day while the landlord has a written lease prepared overnight containing a rental clause for $800 per month

The next day on the way to sign the lease, she sees another apartment much cheaper that she wants, and wants to cancel the first deal. Which of the following statements is true bout the $100 payment? A) It is a down payment and the landlord can only claim any actual loss. B) It is a down payment and is lost on cancellation by Joanne C) It is a deposit and is lost on cancellation by Joanne D) It is a deposit and must be given back to Joanne on cancellation. E) It is a deposit but the landlord can only keep it if he has actual loss because of the cancellation.

The manager thinks that students will go elsewhere for lunch if they have to wait more than 5 minutes. Therefore he's thinking of hiring another server to help Lenny, reducing the customer service time to 4 minutes

How long will students wait in line if Lenny gets help? Lenny, a graduate research assistant "moonlights" at the short order counter in the student union snack bar in the evenings. He is the only one on duty at the counter during the hours he works. Arrivals to the counter seem to follow the Poisson distribution with a mean of 8 per hour. Each customer is served one at a time and the service time follows an exponential distribution with a mean of 5 minutes.