A track coach wants to compare the 200m time of his high school
track team.
boy: 23, 22, 21, 24, 23, 25, 22, 23
girl: 25, 28, 22, 26, 29, 26, 27, 24
a. What test should he use to compare the means?
b. Is it significant at 0.5 level?
c. What conclusion can be made?
d. Calculate omega squared and interpret its meaning in this
study.
t = (M1-M2)/sqr rt
[{(N1-1)S12 +
(N2-1)S22/(N1+N2-2)]
* [(N1 +
N2)/N1*N2]}
Ω2 =...