statistics
posted by Carob .
T test for independent groups and dependent groups (Twogroup designs)
1. An LU professor is interested in whether there is a difference between undergraduate students and graduate students in the amount of time spent praying each day. The professor gathers information from random samples of undergraduate and graduate students on the LU campus. The amount of time praying is normally distributed and is measured on an interval/ratio scale.

statistics (?) 
PsyDAG
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