Question 187806: From National Weather Service records, the annual snowfall in the TopKick Mountains has a mean of 92 inches and a standard deviation of 12 inches. If the snowfall from 36 randomly selected years are chosen, what it the probability that the snowfall would be less than 95 inches?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! -------------------------
From National Weather Service records, the annual snowfall in the TopKick Mountains has a mean of 92 inches and a standard deviation of 12 inches. If the snowfall from 36 randomly selected years are chosen, what is the probability that the snowfall would be less than 95 inches?
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t(95) = (95-92)/[12/sqrt(36)]= 1.5
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P(x < 95) = P(t < 1.5 with df = 35) = 0.9287
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Cheers,
Stan H.
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