Answered: here is some evidence that REM sleep,…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

There is some evidence that REM sleep, associated with dreaming, may also play a role in learning and memory processing. For example, Smith and Lapp (1991) found increased REM activity for college students during exam periods. Suppose that REM activity for a sample of n = 16 students during the final exam period produced an average score of M = 143. Regular REM activity for the college population averages μ = 110 with a standard deviation of σ = 50. The population distribution is approximately normal.

Do the data from this sample provide evidence for a significant increase in REM activity during exams? Use a one-tailed test with α= .01.
Compute Cohen’s d to estimate the size of the effect.
Write a sentence describing the outcome of the hypothesis test and the measure of effect size as it would appear in a research report.

Expert Solution

Step 1

$H_{0} : μ = 110$

$H_{1} : μ > 110$

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