Company XYZ know that replacement times for the DVD players it produces are normally distributed with a mean of 8.2 years and a standard deviation of 2.4 years.Find the probability that a randomly selected DVD player will have a replacement time less than 2.7 years?P(X < 2.7 years) = Enter your answer accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.If the company wants to provide a warranty so that only 1.1% of the DVD players will be replaced before the warranty expires, what is the time length of the warranty?warranty =  yearsEnter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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Company XYZ know that replacement times for the DVD players it produces are normally distributed with a mean of 8.2 years and a standard deviation of 2.4 years.

Find the probability that a randomly selected DVD player will have a replacement time less than 2.7 years?
P(X < 2.7 years) = 

Enter your answer accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

If the company wants to provide a warranty so that only 1.1% of the DVD players will be replaced before the warranty expires, what is the time length of the warranty?
warranty =  years

Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

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