1. The Ecstasy Inn motel has 100 television sets in its rooms. The manager has an opportunity...

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1. The Ecstasy Inn motel has 100 television sets in its rooms. The manager has an opportunity to sign a maintenance contract that calls for an annual payment of $12 per television set. The contract will provide preventive maintenance and adjustments to the sets at 6-month intervals. Currently the average repair cost is $25 each time a set is repaired or adjusted. The probabilities of breakdown at various intervals after a repair are given in the following table.

a. Should the manager purchase the maintenance service as offered at 6-month intervals?

b. Should he attempt to obtain service at other intervals?

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