Of All Individual Tax Returns, 37 Percent Include Errors Made

question 94

Multiple Choice

Of all individual tax returns, 37 percent include errors made by the taxpayer. If IRS examiners are assigned randomly selected returns in batches of 12, find the mean and standard deviation for the number of erroneous returns per batch.

• A) μ = 2.80, σ = 1.67
• B) μ = 4.44, σ = 1.67
• C) μ = 4.44, σ = 2.80
• D) μ = 7.56, σ = 2.80

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Definitions:

Thirty Years' War

A protracted and destructive conflict in Europe lasting from 1618 to 1648, involving most of the great powers of the time and fought primarily over religious and political issues.

Thirty Years' War

A devastating conflict in Central Europe between 1618 and 1648, involving many of the great European powers, that was primarily fought over religious and territorial disputes.

Soldiers

Individuals who serve in an army and are specifically trained and equipped to fight on behalf of a state or country in military engagements.

Treaty of Westphalia

The Treaty of Westphalia, signed in 1648, ended the Thirty Years' War in Europe, marking the beginning of the modern state system by recognizing the sovereignty of nations.