Auxiliary variables are those that the researcher should build into a survey that allow a comparison between sample units that do respond and those that do not respond.

The central limit theorem states that, as sample size increases, the distribution of sample means of samples of size n (when randomly selected) approaches a normal distribution.

When a researcher wants to estimate national market share based on the results of the test market for a new product in St. Louis and Kansas City, this is an example of:

In a test marked study, 206 out of a sample of 560 people state that they "liked" the product being studied. The proportion of people in this study who said that they liked this product was about:

Suppose the average units produced in a month by a Ford Motor Co. plant for Ford Explorers is 22, but only 18 Explorers are produced on a given day in that same month. Then, the deviation score for this one day is ____.

If the sample standard deviation is 10.5 and the sample mean is 48 based on a study with a sample size of 120, the 95 percent confidence interval about the mean is between approximately ____.

If 35 percent of TV viewers recalled seeing an ad for a Ford Explorer on a particular television program based on a sample of 800 viewers, the 95 percent confidence interval for this study would be between approximately ____.

A frequency distribution organized into a table or graph that summarizes percentage values associated with particular values of a variable is called a(n) ____________________.

The idea that as sample size increases, the distribution of sample means of samples of size n, when randomly selected, approaches a normal distribution is known as the ____________________.