Question: Customers can replace1 ,2 ,3 ,or4 tires at a time for their vehicle at Tire Town, a nationwide tire shop chain. For customers who have

Customers can replace1

,or4

tires at a time for their vehicle at Tire Town, a nationwide tire shop chain. For customers who have had their tires replaced at Tire Town, the mean number of tires replaced is=

3.71

,with a standard deviation of=

0.84

.Suppose that we will take a random sample of=

tire replacement orders. (Each order gives the number of tires being replaced.) Letx

represent the sample mean of the7

tire replacement orders. Consider the sampling distribution of the sample meanx

Complete the following. Do not round any intermediate computations. Write your answers with two decimal places, rounding if needed.

(a)Find

(the mean of the sampling distribution of the sample mean).

(b)Find

(the standard deviation of the sampling distribution of the sample mean).

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