Question: Saved In a paired-sample t test, we compare the Mean of Xdiff scores (Xdiff = Posttest - Pretest) to 0. If the mean of Xdiff

Saved In a paired-sample t test, we compare the Mean of Xdiff scores (Xdiff = Posttest - Pretest) to 0. If the mean of Xdiff < 0 , then on average, the posttest score is ... Question 13 options: equals to the pretest score lower than the pretest score higher than the pretest score Question 14 (2 points) Saved In a paired-sample t test, we compare the Mean of Xdiff scores (Xdiff = Posttest - Pretest) to 0. If the mean of Xdiff = 0 , then on average, the posttest score is ... Question 14 options: equals to the pretest score lower than the pretest score higher than the pretest score

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