Exam 17: Determination of Sample Size: a Review of Statistical Theory

Find the mode of the following scores: 1, 2, 3, 4, 5, 5, 7

A researcher must calculate the population mean to calculate the confidence intervals.

The formula below is used to calculate the _______ .

The mean is simply the arithmetic average.

The mode is the measure of central tendency that identifies the value that occurs most often.

Discuss the three factors required to specify sample size.

The normal distribution is represented by the normal curve.

All of the following are characteristics of the standardized normal distribution EXCEPT _____.

Which of the following is a measure of dispersion?

The formula below is the formula for the ______ .

The arithmetic average of a set of numbers is referred to as the _____.

A set of data organized by summarizing the number of times a particular value of a variable occurs is referred to as a(n) _____.

Population parameters are measured characteristics of a specific population.

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 _____.

All of the following are measures of central tendency EXCEPT _____.

Variables in a sample or measures computed from sample data are called _____.

The standard deviation of the sampling distribution is called the ______ of the mean.

Which of the following eliminates the drawback of having the measure of dispersion in squared units rather than in the original measurement units?

A frequency distribution of the population elements is called a _____.

The variance, or heterogeneity, of the population refers to the standard deviation of the population.