The average lifespan of a CleanFreek dishwasher is normally distributed with a mean of 9 years and a standard deviation

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The average lifespan of a CleanFreek dishwasher is normally distributed with a mean of 9 years and a standard deviation

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The Average Lifespan Of A Cleanfreek Dishwasher Is Normally Distributed With A Mean Of 9 Years And A Standard Deviation 1
The Average Lifespan Of A Cleanfreek Dishwasher Is Normally Distributed With A Mean Of 9 Years And A Standard Deviation 1 (35.25 KiB) Viewed 33 times
The average lifespan of a CleanFreek dishwasher is normally distributed with a mean of 9 years and a standard deviation of 1.9 years. Standard Normal Distribution Table a. What is the probability that a CleanFreek dishwasher will last longer than 11 years? P(X> 11) = 0 b. What is the probability that a CleanFreek dishwasher will last fewer than 7 years? P(X< 7) = 0 c. What length warranty should be established on the dishwashers so that no more than 1.7% of the units will need to be replaced under warranty? 0.00 years Round to 2 decimal places.
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