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According to the IRS, the Average Refund in the 2011

Question 91

Multiple Choice

According to the IRS, the average refund in the 2011 tax year was $3,109. Assuming that the standard deviation for these refunds was $874, what is the standard error of the sample mean for a random sample of 50 tax returns?


A) $74.66
B) $100.56
C) $123.60
D) $152.25

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