Exam 1: Statistics and Data

Every 10 years,a census is taken in the U.S.by the Census Bureau.Despite the intent of gathering data on the population of the United States,issues exist that make true population data impossible to gather.Identify at least two issues in collecting these data.

San Francisco 49ers' linebacker Patrick Willis won the Defensive Rookie of the Year Award in 2007 with a total of 174 tackles.Tackles are measured on what kind of a scale? Is a variable measuring the number of tackles considered continuous or discrete?

The interval scale of data measurement is

A sample statistic is an estimate of

Which of the following is an example of quantitative data?

Sampling is used heavily in manufacturing and service settings to ensure high-quality products.In which of the following areas would sampling be inappropriate?

Cross-sectional data contain values of a characteristic of one subject collected over time.

A population is defined as all possible subjects of a specific group.

A knowledge of statistics provides the necessary tools to differentiate between sound and questionable conclusions.

The Fahrenheit scale for measuring temperature would be classified as a(n)

Sampling allows researchers to draw conclusions about the population.

A population consists of

What are the primary reasons that sampling is necessary?

Which data scales of measurement are associated with qualitative data?

Your business statistics class had a test last week.The average score for the class is an example of

The following table includes the number of white women over the age of 20 in the civilian labor force.Because it is time series data,what would the entries of the first column refer to? Source: http://data.bls.gov

Typically,it is possible to examine every member of the population.

A respondent of a survey is asked whether the Philadelphia Flyers' performance in the last game was excellent,good,fair,or poor.The person indicates that the performance was "good." This is an example of

Which of the following is an example of qualitative data?

The following data represent a sample of property sales in Cape May County during the year 2000.Identify the qualitative and quantitative variables.What are the natural categories for Town and Class? Identify the measurement scales for all variables.