Hypothesis testing intro

The word parametric means

• Normally distributed

• Same variance

• Both

• None

Paired t-test is used when we have more than 2 groups

• True

• False

Tags

CCSS.HSS.ID.A.4

When comparing numerical variable among three groups

The standard deviation of the three groups are not the same

the data distributed normally

we should use:

• ANOVA

• Repeated measure ANOVA

• Kruskal Wallis test

• Welch's ANOVA

To test normality in a small sample size data which test is preferrable?

• Shapiro Wilk test

• Kolmogorov-Smirnov Test

• Lilliefors Test

• None of them

To test the homogeneity of variance while the data is NOT normal, all these tests can be used EXCEPT

• Levene's Test

• Bartlett's Test

• Fligner-Killeen Test

• Brown-Forsythe Test