Customers experiencing technical difficulty with their Internet cable hookup may call an 800 number for technical support. It takes the technician between 18 seconds and 12 minutes to resolve the problem. The distribution of this support time follows the uniform distribution.
a)What percent of the problems takes more than 5 minutes to resolve?(Do not round your intermediate calculations. Round your answer to 2 decimal places.)
b)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 intermediate calculations. Round your answers to 3 decimal places.)
Let X denote the time taken to resolve the problem (in minutes). Then
a)
Required percentage = 60%
b)
Let the lower end point be 'L'.
Let the lower end point be 'U'.
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