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#1 Help Me ! » Probability of an Item - Need help! Please » 2011-03-17 09:15:31

mrcode
Replies: 1

The lifetime of an ipod battery has a right-skewed distribution with a mean of 4,000 hours and standard deviation of 1,000 hours.  If you sample 75 ipod batteries, what is the probability that the sample mean is greater than 4200 hours?


Please show work and answer.

Thanks.

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