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placebo drug and some n rent groups;

placebo drug and some n rent groups;

MATLAB: An Introduction with Applications
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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Realiza a Post-Hoc and interpret the results. Were they significant? 

Students were given different drug treatments before revising for their exams. Some were given a memory drug, some a placebo drug and some no treatment. The exam scores (%) are shown below for the three different groups: Memory Placebo No Treatment Drug 70 37 77 43 10 83 50 17 90 57 23 97 63 30 Мean 83.40 50.00 16.60 Variance 112.30 109.00 112.30 Grand Mean 50.00 Grand Variance 892.14
Transcribed Image Text:Students were given different drug treatments before revising for their exams. Some were given a memory drug, some a placebo drug and some no treatment. The exam scores (%) are shown below for the three different groups: Memory Placebo No Treatment Drug 70 37 77 43 10 83 50 17 90 57 23 97 63 30 Мean 83.40 50.00 16.60 Variance 112.30 109.00 112.30 Grand Mean 50.00 Grand Variance 892.14
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