Exam 1: Where Do Data Come From

The administration of Virginia Commonwealth University has been asked to extend the Drop/Add Period to two weeks (instead of the current one week period). VCU will do so if it is convinced that more than half of the student body is in favor of this change. Of the 1500 students surveyed, 803 are in favor of extending the Drop/Add Period as proposed. The response variable for this study is

An editorial writer for the East Mule Shoe Gazette wants to measure public support for a discontinued construction project that has left a city-block-size hole in the middle of the East Mule Shoe downtown area, so he uses his lunch hour one day to walk down the block adjacent to the project and ask the first 25 people who will talk to him about whether they support continuing the project. The sample for this survey is:

In a(n) _____________, the environments of the subjects are controlled or manipulated by the researcher.

A recent survey of 35,101 randomly selected U.S. adults studied the religious affiliation of Americans. The sample for this survey is

In a(n) _____________, all subjects of the population are studied.

The General Social Survey (GSS), conducted by the National Opinion Research Center at the University of Chicago, is a major source of data on social attitudes in the United States. Once each year, 1500 adults are interviewed in their homes all across the country. The subjects are asked their opinions about sex and marriage, attitudes toward women, welfare, foreign policy, and many other issues. The population for the GSS is

The General Social Survey (GSS), conducted by the National Opinion Research Center at the University of Chicago, is a major source of data on social attitudes in the United States. Once each year, 1500 adults are interviewed in their homes all across the country. The subjects are asked their opinions about sex and marriage, attitudes toward women, welfare, foreign policy, and many other issues. The questions on the GSS are considered

When we take a census, we attempt to collect data from

A(n) _____________ is a subset of subjects from the population.

You want to know the opinions of American school teachers about establishing a national test for high school graduation. You obtain a list of the members of the National Education Association (the largest teachers' union) and mail a questionnaire to 2500 teachers chosen at random from this list. In all, 1347 teachers return the questionnaire. The sample is