(Answered) : 1. A single Automated Teller Machine (ATM) is located on the ground floor of a popular shopping mall. Service time at this machi

1. A single Automated Teller Machine (ATM) is located on the ground floor of a popular shopping mall. Service time at this machine is exponentially distributed. On average, the ATM machine can serve a customer in 3 minutes. Customer arrivals at the machine are Poisson distributed, with an average of 15 customers an hour. Relevant formulas to analyze this M/M/1 model are available in your textbook.

On average, how many people are waiting to use this ATM machine?

A.
5.333

B.
1.0

C.
0.75

D.
0

E.
2.25

2. Archer Contracting repaved 50 miles of two-lane county roadway with a crew of six employees. This crew worked 8 days and used $7000