ANOVA Test AP Stats
State:
Ho: u1=u2=u3…
Ha: At least one of the population means is different
ANOVA-Test
Plan:
Randomness
Normality: n>30, CLT If n<30, make boxplot
Equal SD: (Largest SD/Smallest SD) <2
(If normality or equal SD not met, proceed with caution)
Do:
Find I: (topDF)+1
Find N: (bottomdf)+I
F statistic
P value
State:
Ho: u1=u2=u3…
Ha: At least one of the population means is different
ANOVA-Test
Plan:
Randomness
Normality: n>30, CLT If n<30, make boxplot
Equal SD: (Largest SD/Smallest SD) <2
(If normality or equal SD not met, proceed with caution)
Do:
Find I: (topDF)+1
Find N: (bottomdf)+I
F statistic
P value