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.
Company XYZ know that replacement times for the DVD players it produces are
Find the
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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