Multiple Choice
Which statement is only true for the t test for dependent means rather than t tests in general?
A) Population variances are estimated from the information in the sample of scores actually studied.
B) Pretest-posttest experimental designs are common.
C) The population means are unknown.
D) The sample scores (in some form) are compared to a t distribution.
Correct Answer:

Verified
Correct Answer:
Verified
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