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Exam 1: What Is Statistics

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Question 41

Multiple Choice

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The main purpose of descriptive statistics is to:

A) Summarize data in a useful and informative manner.
B) Make inferences about a population.
C) Determine if the data adequately represents the population.
D) Gather or collect data.

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

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Question 42

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A listing of 100 family annual incomes is an example of statistics.

A) True
B) False

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Question 43

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

A New York newspaper reported the average gasoline prices in four metropolitan areas and used a bar chart to illustrate the differences.What type of statistics was shown? What activities did the newspaper use to make the report?

Based on a sample of 3,000 people,the civilian unemployment rate in the United States was 5.5%.5.5% is referred to as a statistic.

Shoe sizes,such as 7B,10D and 12EEE,are examples of what level of measurement?

The Equal Employment Opportunity Act requires employers to classify their employees by gender and national origin.Which level of measurement is this?

An ordinal level of measurement implies some sort of ranking.

The science of collecting,organizing,presenting,analyzing,and interpreting of data is called ___________________.

The lowest level of measurement that has some sort of ranking is ___________.

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

The collection of all possible objects of interest is referred to as the _____________.

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

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

What level of measurement is the prime rate of interest? ______________

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

Categorizing students as freshmen,sophomores,juniors and seniors is an example of the ______________ level of measurement.

Which one of the following is NOT an example of discrete data?

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