t-test question help

Statistics
Tutor: None Selected Time limit: 1 Day

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.
Mar 30th, 2015

A. Population variances are estimated from the information in the sample of scores actually studied.

Mar 30th, 2015

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Mar 30th, 2015
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Mar 30th, 2015
Feb 21st, 2017
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