An ANOVA Procedure Is Used for Data Obtained from Five

question 48

Multiple Choice

An ANOVA procedure is used for data obtained from five populations. Five samples, each comprised of 25 observations, were taken from the five populations. The numerator and denominator (respectively) degrees of freedom for the critical value of F are

• A) 5 and 25.
• B) 4 and 25.
• C) 4 and 124.
• D) 4 and 120.

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Definitions:

Mean

The arithmetic average of a set of values, calculated by adding all the values together and dividing by the number of values.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values; a low standard deviation means the values are close to the mean, while a high standard deviation means the values are dispersed over a wider range.

Standard Normal Random Variable

A random variable with a mean of zero and a variance of one, following the standard normal distribution.

Area

The measure of the extent of a two-dimensional surface or shape, expressed in square units.