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Refer to Exercise 4.129. Find an interval for which the probability that C will lie within it is at least .75.
4.129 During an eight-hour shift, the proportion of time Y that a sheet-metal stamping machine is down for maintenance or repairs has a beta distribution with α = 1 and β = 2. That is,
The cost (in hundreds of dollars) of this downtime, due to lost production and cost of maintenance and repair, is given by C = 10 + 20Y + 4Y2. Find the
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Chapter 4 Solutions
Mathematical Statistics with Applications
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