Question: Bestronics has a three-step process for processing customer sales. First, the cashier must look up the customer's loyalty card on the company's information system. Second,

Bestronics has a three-step process for processing customer sales. First, the cashier must look up the customer's loyalty card on the company's information system. Second, the cashier enters the transaction on the point-of-sale register. Third, the cashier processes the credit card through a verification system.

a.If the reliability of the information system is 0.998, the reliability of the point-of-sale register is 0.992 and the reliability of the credit card verification system is 0.978, what is the overall system reliability?

b.If the store manager wants to ensure at least a 98 percent system reliability, make a recommendation of how to do this?

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