When Testing a Hypothesis About a Single Mean, If the Sample

question 100

Multiple Choice

When testing a hypothesis about a single mean, if the sample size is 20, the population standard deviation is unknown, and the population is assumed to be a normal distribution, the correct test statistic to use is ________.

• A) r
• B) z
• C) t
• D) p-value

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Definitions:

Colin Powell

An American military leader and statesman who served as the 65th United States Secretary of State from 2001 to 2005 and as Chairman of the Joint Chiefs of Staff.

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