Answer to Question #112474 in Operations Research for Benjamin ikheloah

Question

Q1. In Zenith Bank, there are five teller points attending to customers for their deposits and withdrawals. The arrival rate is 160 customers in 8 hours. Each teller point spends an uneven amount of time servicing the arrivals which have been observed to have exponential distribution. The average service time is 10 minutes. You are required to determine:

a. The average queue length
b. Average number of customers in the system
Q2. Consider the payoff table below (The payoff in millions of shillings and P S( j ) the probability of state of nature Sj occurring)

Action S1 S2 S3
D 20 25 -10
D 30 15 30
D 40 0 50
Recommend the best decision alternative using
a) Optimistic approach
b) Pessimistic approach

Answer 1

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