TV Warranty Replacement times for TV sets are normally distributed with a mean of 8.2 years and
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TV Warranty Replacement times for TV sets are normally distributed with a mean of 8.2 years and a standard deviation of 1.1 years (based on data from “Getting Things Fixed,” Consumer Reports).
a. Find the probability that a randomly selected TV will have a replacement time less than 5.0 years.
b. If you want to provide a warranty so that only 1% of the TV sets will be replaced before the warranty expires, what is the time length of the warranty?
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Sinmon Warui Kamau
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