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
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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(32388) (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
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