SOLUTION: Assume that women's weights are normally distributed with a mean given by ๐œ‡=143 lb and a standard deviation given by ๐œŽ=29 lb. a)If 91 women are randomly selected, find th

Algebra ->  Probability-and-statistics -> SOLUTION: Assume that women's weights are normally distributed with a mean given by ๐œ‡=143 lb and a standard deviation given by ๐œŽ=29 lb. a)If 91 women are randomly selected, find th      Log On


   



Question 1179247: Assume that women's weights are normally distributed with a mean given by ๐œ‡=143 lb and a standard deviation given by ๐œŽ=29 lb.
a)If 91 women are randomly selected, find the probability that they have a mean weight above 175.


Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi
Distribution: normal with ยต = 143 and ฯƒ = 29
Using TI or similarly an inexpensive calculator like an Casio fx-115 ES plus
n = 91
P( x > 175) = normalcdf(175,9999,143,29/โˆš91) = basically zero % probability

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