Answered: What cutoff score(s) should be used?…

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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A researcher arranged to train four volunteers in a memory program and four other volunteers served as a control group. A week later, as part of their psychology class, all eight volunteers watched a film showing a bank robbery. Afterwards, they were questioned about the events. The mean number of correct responses for the participants who had taken the memory course was 23 with a standard deviation of 2.16. The mean number of correct responses for the control-group participants was 17.75 with a standard deviation of 3.30. Do these results support the contention that those trained in this particular memory program are affected in their recall for spontaneously observed events? Use the .01 significance level.

What cutoff score(s) should be used?

±3.356

±2.447

±3.708

+1.943

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