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Exam 1: What Is Statistics

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Question 21

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Categorizing voters as Democrats,Republicans,and Independents is an example of interval level measurement.

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B) False

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Question 22

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There are four levels of measurement: qualitative,quantitative,discrete,and continuous.

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B) False

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Question 23

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An example of a qualitative variable is

What level of measurement is a person's "favorite sport"?

Data measured on a nominal scale can only be classified into categories.

What type of variable is "pounds of popcorn" served at a movie theater?

The order in which runners finish in a race would be an example of continuous data.

A marketing class of 50 students evaluated the instructor using the following scale: superior,good,average,poor,or inferior. The descriptive summary showed the following survey results: 2% superior,8% good,45% average,45% poor,and 0% inferior.

The CIA World Factbook cited these numbers for the United States: • The birthrate is 13.66 births per 1,000 of the population. • The average life expectancy for females is 81.17 years. • Approximately 316.7 million persons reside in the United States. Each of these numbers is referred to as a statistic.

A survey includes a question about marital status that has the following responses: single,married,divorced,separated,or widowed. What is the scale of measurement for this question?

The names of the positions in a corporation,such as chief operating officer or controller,are examples of what type of variable?

What type of variable is the number of robberies reported in your city?

Respondents were asked,"Do you now earn more than or less than you did five years ago?" What is this level of measurement?

A university wishes to conduct a student survey. In one of the questions students are asked to mark their gender as either male or female. Gender is an example of the

The main purpose of descriptive statistics is to

Shoe style is an example of what level of measurement?

Your height and weight are examples of which level of measurement?

The ordinal level of measurement is considered the "lowest" level of measurement.

The terms descriptive statistics and inferential statistics can be used interchangeably.

The members of each basketball team wear numbers on their jerseys. What scale of measurement are these numbers considered?