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Exam 1: What Is Statistics

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Question 1

Multiple Choice

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The final rankings of the top 20 NCAA college basketball teams are an example of which level of measurement?

A) Nominal
B) Ordinal
C) Interval
D) Ratio

E) B) and C)
F) All of the above

Correct Answer

verified

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Question 2

Multiple Choice

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

A) Interval
B) Ratio
C) Nominal
D) Ordinal

E) A) and B)
F) C) and D)

Correct Answer

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D

Question 3

Short Answer

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The number of workers calling in sick during any particular week is considered to be _______________ data.

The main purpose of descriptive statistics is to:

The incomes of 50 loan applicants are obtained. Which level of measurement is income?

Among the many classes held at your college or university, your statistics class has been selected for a study. This one class is referred to as a ____________.

A population is a collection of all individuals, objects, or measurements of interest.

Income is a variable often used in business and economics. Income is an example of a variable that uses the:

A variable such as eye color is also referred to as a(n) _____________ variable.

Shoe style is an example of what level of measurement?

The average number of passengers on commercial flights between Chicago and New York City is an example of a statistic.

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

If Gallup, Harris, and other pollsters asked people to indicate their political party affiliation as Democrat, Republican, or Independent, the data gathered would be an example of which scale of measurement?

The Union of Electrical Workers of America with 9,128 members polled 362 members about a new wage package that will be submitted to management. The population is the 362 members.

The CIA World Factbook cited these numbers for the United States: • The birthrate is 13.66 births per 1,000 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.

The branch of statistics that collects, analyzes, and presents data is called _____________ statistics.

The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called ____________.

The monthly consumer price index is called a(n) ______________.

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

The prime rate of interest is an example of a(n) ______________ level of measurement.