# SOLUTION: Replacement times for TV sets are normally distributed with a mean of 8.2 years and a standard deviation of 1.1 years. A) find the probability that a randomly selected TV will

Algebra ->  Algebra  -> Probability-and-statistics -> SOLUTION: Replacement times for TV sets are normally distributed with a mean of 8.2 years and a standard deviation of 1.1 years. A) find the probability that a randomly selected TV will      Log On

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 Click here to see ALL problems on Probability-and-statistics Question 318448: Replacement times for TV sets are normally distributed with a mean of 8.2 years and a standard deviation of 1.1 years. A) find the probability that a randomly selected TV will have a replacement time less than 6.0 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 that warranty?Answer by Fombitz(13828)   (Show Source): You can put this solution on YOUR website!a) Find the z score. . . . b) Find z so that P(z)=0.01. yrs