Question: 3. The Romba floor cleaning system is controlled by a computer that has three primary modules. For the product to work, all three modules function

3. The Romba floor cleaning system is controlled by a computer

3. The Romba floor cleaning system is controlled by a computer that has three primary modules. For the product to work, all three modules function correctly. Two of the modules have reliabilities of 0.97 ; the other module has a reliability of 0.99 . a. What is the reliability of the floor cleaning system? b. A backup computer identical to the one in place will be installed in premium models to improve overall reliability. Assuming the backup will function autamatically if the main one falls, what would be the resulting reliability? c. If the backup computer requires a switch to activate it when the central computer fails, and the switch has the reliability of 98 , what is the system's overall reliability? 4. A service has four major components required for completion and delivery to the consumer. The component reliabilities are, 0.90,0.94,0.95, and 0.98 . All four components must be performed for the service to take place. a. What is the reliability of the current service offering? b. The boss wants to improve reliability by providing a backup. Because he/she is cheap, they have informed you that they will only backup one of the four components with an identical part. (The backup will have the same reliability as the component it is replacingl. Which component should get the backup to achieve the highest reliability? c. If one backup with a reliability of 0.93can be added to any of the main components, which one should achieve the highest overail reliability

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