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Customers experlencing technical dlfficulty with their Internet cable service may call an 800 number for technical support. It takes the techniclan between 90 seconds and 16 minutes to resolve the problem. The distribution of this support time follows the unlform distribution. a. What are the values for a and b in minutes? (Do not round your intermedlate calculations. Round your answers to 1 decimal place.) b-1. What is the mean time to resolve the problem? (Do not round your intermedlate calculations. Round your answer to 2 decimal places.) b-2. What is the standard devlation of the time? (Do not round your intermedlate calculations. Round your answer to 2 decimal places.) c. What percent of the problems take more than 5 minutes to resolve? (Do not round your intermedlate calculations. Round your answer to 2 decimal places.) d. Suppose we wish to find the middle 50% of the problem-solving times. What are the end points of these two times? (Do not round your intermedlate calculations. Round your answers to 3 decimal places.).

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- 1. Customers experlencing technical dlfficulty with their Internet cable service may call an 800 number for technical support. It takes the techniclan between 90 seconds and 16 minutes to resolve the problem. The distribution of this support time follows the unlform distribution. a. What are the values for a and b in minutes? (Do not round your intermedlate calculations. Round your answers to 1 decimal place.) b-1. What is the mean time to resolve the problem? (Do not round your intermedlate calculations. Round your answer to 2 decimal places.) b-2. What is the standard devlation of the time? (Do not round your intermedlate calculations. Round your answer to 2 decimal places.) c. What percent of the problems take more than 5 minutes to resolve? (Do not round your intermedlate calculations. Round your answer to 2 decimal places.) d. Suppose we wish to find the middle 50% of the problem-solving times. What are the end points of these two times? (Do not round your intermedlate calculations. Round your answers to 3 decimal places.)