Mathematics, 27.03.2020 08:17 jasperzhouzihe3018
Replacement times for TV sets are normally distributed with a mean of 8.2 years and a standard deviation of 1.1 years(bases data from "Getting Things Fixed", Consumer Reports). Find the probability that 40 randomly selected TV sets will have a mean replacement time less than 8.0 years.
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Replacement times for TV sets are normally distributed with a mean of 8.2 years and a standard devia...
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