Statistics from a Weather Centre Indicate That a Certain City $\overline{ y}$

question 28

Multiple Choice

Statistics from a weather centre indicate that a certain city receives an average of 23 inches of snow each year,with a standard deviation of 3 inches.Assume that a Normal model applies.A student lives in this city for 4 years.Let $\overline{ y}$ represent the mean amount of snow for those 4 years.Describe the sampling distribution model of this sample mean.

• A)Binom(23,3)
• B)N(23,1.5)
• C)N(23,0.75)
• D)N(23,3)
• E)There is not enough information to describe the distribution.

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