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Sampling Methods - Mid-Motors Ford

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There are five sales associates at Mid-Motors Ford. The five representatives and the number
of cars they sold last week are:

Sales
Representative Cars Sold

Peter Hankish 8
Connie Stallter 6
Juan Lopez 4
Ted Barnes 10
Peggy Chu 6

a. How many different samples of size 2 are possible?
b. List all possible samples of size 2, and compute the mean of each sample.
c. Compare the mean of the sampling distribution of sample means with that of the
population.
d. On a chart similar to Chart 8-1, compare the dispersion in sample means with that of the
population.

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The solution examines sampling methods for Mid-Motor Ford.

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