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6. In order to get a bonus at work you have to be able to do...

6. In order to get a bonus at work you have to be able to do a job in the fastest 12.92% of all people at work who do that job. If the time to do this job is normally distributed with a mean of 15 minutes and a standard deviation of 3 minutes what is the maximum time you have to do the job and still qualify for the bonus?
(4) 7. You want to offer a warranty on a product but you want to replace at most 1.70% of the products you sell. If the life of the product you sell is normally distributed with a mean of 15 years and a standard deviation of 5 years how long should the warranty be for?
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