Probability, Basic Statistics

1) A certain brand of batteries has a lifetime that has a normal distribution with a mean of 3,800 hours and a standard deviation of 390 hours.

b) What lifetime should the manufacturer advertise for these batteries in order that only 2% of the lamps will wear out before the advertised lifetime?
Posted Date: 3/15/2013 11:02:06 PM | Location : United States







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