SOLUTION: The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 107 inches, and a standard deviation of 12 inches. What is the probability that
Algebra ->
Probability-and-statistics
-> SOLUTION: The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 107 inches, and a standard deviation of 12 inches. What is the probability that
Log On
Question 508814: The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 107 inches, and a standard deviation of 12 inches. What is the probability that the mean annual precipitation during 36 randomly picked years will be less than 109.8 inches? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 107 inches, and a standard deviation of 12 inches. What is the probability that the mean annual precipitation during 36 randomly picked years will be less than 109.8 inches?
------------------------------
z(109.8) = (109.8-107)/sqrt(36) = 0.4667
P(x-bar < 109.8) = P(z < 0.4667) = 0.6796
===========
Cheers,
Stan H.
===========
(