Question: Statisitics from Cornell's Northeast Regional Climate Centre indicate that Ithaca, New York, gets anaverage of 35.4 inchesof rain each year with aSD of 4.2 inches.

Statisitics from Cornell's Northeast Regional Climate Centre indicate that Ithaca, New York, gets anaverage of 35.4 inchesof rain each year with aSD of 4.2 inches. Assume that aNormal model applies.

a)A Cornell University student is in Ithaca for4 years.Let y represent the mean amount of rain for those 4 years. Describe the sampling distribution model of this sample mean, y.

a)What's the probability that those 4 years average less than 30" of rain?

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