A Speaker Gives This Information in Her Speech: "More Than

question 11

Multiple Choice

A speaker gives this information in her speech: "More than 300,000 Americans die annually because of obesity caused by unhealthy eating habits or lack of exercise. That is about the same number of people who live right here in our city of Tampa, Florida." Which guideline for using statistics has this speaker failed to follow?

• A) Round off numbers
• B) Relate statistics to the audience
• C) Cite a source
• D) Convert fractions to percentages

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Definitions:

Alternative Hypothesis

A statement that contradicts the null hypothesis and is tested for possible acceptance in hypothesis testing.

Skewness

A measure of the asymmetry of the probability distribution of a real-valued random variable about its mean.

Simple Random Sample

A selection from a larger population where every member has an identical chance of being picked.

T Procedures

Statistical methods based on the t-distribution, used for hypothesis testing and confidence interval estimation, mainly when sample sizes are small.