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Company XYZ know that replacement times for the DVD players it produces are normally distributed with a mean of 9.3 years and a standard deviation of 1.6 years. Find the probability that a randomly selected DVD player will have a replacement time less than 6.3 years? P(X < 6.3 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 1.9% 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.

Company XYZ know that replacement times for the DVD players it produces are normally distributed with a mean of 9.3 years and a standard deviation of 1.6 years. Find the probability that a randomly selected DVD player will have a replacement time less than 6.3 years? P(X < 6.3 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 1.9% 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.

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Company XYZ know that replacement times for the DVD players it produces are normally distributed with a mean of 9.3 years and a standard deviation of 1.6 years. Find the probability that a randomly selected DVD player will have a replacement time less than 6.3 years? P(X < 6.3 years) = %3D 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 1.9% of the DVD players will be replaced before the warranty expires, what is the time length of the warranty? warranty = уears 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.
Transcribed Image Text:Company XYZ know that replacement times for the DVD players it produces are normally distributed with a mean of 9.3 years and a standard deviation of 1.6 years. Find the probability that a randomly selected DVD player will have a replacement time less than 6.3 years? P(X < 6.3 years) = %3D 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 1.9% of the DVD players will be replaced before the warranty expires, what is the time length of the warranty? warranty = уears 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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