What Pretest-Posttest Combination for the Second Group Would Make You

question 24

Multiple Choice

What pretest-posttest combination for the second group would make you believe that the treatment program was effective?

• A)50 - 50
• B)30 - 70
• C)40 - 80
• D)80 - 80

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Definitions:

Numerator

The top number of a fraction, showing the number of parts out of the denominator considered.

Chi-square Distribution

A probability distribution that is used to describe the distribution of a sum of the squares of k independent standard normal random variables, often used in hypothesis testing.

Standard Deviation

A measure of the amount of variation or dispersion in a set of values, indicating how much the values differ from the mean.

Sample Variance

A statistical measure of the dispersion or variance within a sample data set.