According to the IRS, the Average Refund in the Last

question 23

Multiple Choice

According to the IRS, the average refund in the last tax year was $2.974. Assuming that the standard deviation for these refunds was $812, the standard error of the mean for a random sample of 60 tax returns is ____________ .

• A)$141.38
• B)$104.83
• C)$127.10
• D)$72.55

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Definitions:

Transferrin

A plasma protein that transports iron throughout the body.

Erythrocytes

Red blood cells that are primarily responsible for carrying oxygen and carbon dioxide throughout the body.

Amino Acids

Organic compounds that combine to form proteins, which are the building blocks of life.

Erythropoietin

A hormone produced primarily by the kidneys that regulates the production of red blood cells in the bone marrow.