Math Solutions

[Step-by-Step] High school students regularly watched Sesame Street as 5 yr old children had high grades than their peers who did not. The results of the

Question: High school students regularly watched Sesame Street as 5 yr old children had high grades than their peers who did not. The results of the Independent measures t test indicated significant differences between the two.

  1. Does the Mann Whitney U test also indicate a significant difference? Test a 0.05 alpha.
  2. The Kruskal Wallis tests is usually intended for evaluating the differences among 3 or more separate samples. However the test can be used with only 2. Use the Kruskal Wallis test with a alpha=0.05 to test the differences between the two. Is this consistent with Mann Whitney?

AVERAGE HIGH SCHOOL GRADE

WATCHED SESAME STREET DID NOT WATCH SESAME STREET
86 90
99 79
87 89
97 83
91 82
94 86
97 83
89 81
98 85
92 82
N=10 N=10
M=93 M=85
Ss=200 Ss=160

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