If a score appears 20 times in a sample of 80 scores, what is its relative frequency?
a. .25
b. 4
c. 20 d. .20
a
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Gustav Fritsch and Eduard Hitzig used electrical stimulation of the brain to produce movement.
Answer the following statement true (T) or false (F)
What is whiskey distilled from?
a. fruit b. corn c. beer d. molasses
Sometimes researchers use estimation of population means, rather than hypothesis tests. These estimations are based on a. the standard error of the mean. b. the standard deviation
c. the z test. d. confidence intervals.
Using the same subjects in each condition in an experiment is to using different subjects in each condition in an experiment as _____ is to _____
a. between-subjects design; within-subjects design b. control group; experimental group c. within-subjects design; between-subjects design d. experimental group; control group