A Study Was Conducted on the Effects of Lack of REM

Essay

A study was conducted on the effects of lack of REM sleep on the ability to recall a list of words. The study found that, of participants deprived of normal REM sleep, 4 scored high on memory recall, 7 scored moderately, and 9 scored low. Of participants who received normal sleep, 10 scored high, 9 moderately, and 1 low. Do these results suggest that REM sleep is related to how people score on the memory recall? (Use the .01 significance level.)
a. Use the five steps of hypothesis testing.
b. Sketch the chi-square distribution.
c. Explain the logic of what you have done.
d. Figure a measure of effect size and indicate whether it is small, medium, or large.
e. Figure the approximate power.