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Question: Researchers report that their randomized controlled trial testing the treatment of 1 oz of dark c…

by Essaynice Tutors | Sep 9, 2023 | statistics and probability

Researchers report that their randomized controlled trial
testing the treatment of 1 oz of dark chocolate per day compared to
1 oz of milk chocolate per day in curing test anxiety among college
students has a power level of 80%. This means that:

A)	80% of college students who consume dark chocolate daily v. milk chocolate daily have lowered test anxiety.

B)	There is an 80% probability that the dark chocolate treatment will improve test scores among college students.

C)	There is an 80% chance that the study will find that the dark chocolate treatment in college students reduces test anxiety.

D)	The study has an 80% chance of Type II error.

E)	There is an 80% probability of detecting a difference between the treatment of dark chocolate v. milk chocolate if the treatments do in fact truly differ.