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Company XYZ know that replacement times for the DVD players it produces are normally distributed with a mean of 6.9 year
Posted: Thu May 12, 2022 2:58 pm
by answerhappygod
- Company Xyz Know That Replacement Times For The Dvd Players It Produces Are Normally Distributed With A Mean Of 6 9 Year 1 (267.64 KiB) Viewed 37 times
Company XYZ know that replacement times for the DVD players it produces are normally distributed with a mean of 6.9 years and a standard deviation of 1.3 years. Find the probability that a randomly selected DVD player will have a replacement time less than 3 years? P(X < 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 2.5% 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.