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Leno4ka [110]
3 years ago
8

Assume that the weights of all packages of a certain brand of cookies are normally distributed with a mean of 32 ounces and a st

andard 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.

Mathematics
1 answer:
Anestetic [448]3 years ago
6 0
That probability is about 6.7%.

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