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Statistics 7 Online
OpenStudy (jessicawade):

Check my work? will medal and fan, i already have them worked out, just needing them checked!

OpenStudy (jessicawade):

2. Currently, quarters have weights that are normally distributed with a mean of 5.670 g and a standard deviation of 0.062 g. A vending machine is configured to accept only those quarters with weights between 5.550 g and 5.790 g. If 280 different quarters are inserted into the vending machine, what is the probability that the mean falls between the limits of 5.550 g and 5.790g? A. 0.9998 B. 0.0524 C. 0.0002 D. 0.9476

OpenStudy (jessicawade):

i got D, im supposed to be using the central limit theorem

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