Clebron8548 Clebron8548
  • 04-03-2018
  • Mathematics
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Assume that the weights of all packages of a certain brand of cookies are normally distributed with a mean of 32 ounces and a standard deviation of 0.3 ounce. find the probability that the mean weight, x¯, of a random sample of 20 packages of this brand of cookies will be between 31.8 and 31.9 ounces.

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sqdancefan
sqdancefan sqdancefan
  • 10-03-2018
That probability is about 6.7%.
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