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60 illiterate preschool children were randomly divided into four groups of 15 children. Each group used a different method to teach reading skills. Afterwards, reading skills were tested with the following results. Group X ̄i group Xi S2i 1 65 224 2 62 241 3 68 233 4 61 245 Test the null hypothesis that the methods are equally effective. Use a five percent significance level.   Functions from excel or R should not be used to test this.

60 illiterate preschool children were randomly divided into four groups of 15 children. Each group used a different method to teach reading skills. Afterwards, reading skills were tested with the following results. Group X ̄i group Xi S2i 1 65 224 2 62 241 3 68 233 4 61 245 Test the null hypothesis that the methods are equally effective. Use a five percent significance level.   Functions from excel or R should not be used to test this.

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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60 illiterate preschool children were randomly divided into four groups of 15 children. Each group used a different method to teach reading skills. Afterwards, reading skills were tested with the following results.
Group X ̄i

group Xi S2i
1 65 224
2 62 241
3 68 233
4 61 245


Test the null hypothesis that the methods are equally effective. Use a five percent significance level.

 

Functions from excel or R should not be used to test this. 

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