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Suppose that the lifetimes of a certain kind of light bulb are normally distributed with a standard deviation of 100 hours. If exactly 90% of
Suppose that the lifetimes of a certain kind of light bulb are normally distributed with a standard deviation of 100 hours. If exactly 90% of the bulbs did before 910 hours, find the mean lifetime of the bulbs. Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place
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Linear Algebra
Authors: Stephen H Friedberg, Arnold J Insel, Lawrence E Spence
4th Edition
0321998898, 9780321998897
