Ch 11 Chi Square Tests

Question 1

Hypotheses for homogeneity

Answer 1

There’s NO difference in the true distribution of a categorical variable for several populations or treatments
…there is a difference

Question 2

Hypotheses for independence

Answer 2

No association btwn 2 categorical variables in the population of interest
…there is an association

Question 3

Expected counts for x^2GOF

Answer 3

Total observed (sample size) • expected (proportion in each category according to Ho)

Question 4

Hypotheses for chi square

Answer 4

Stated distribution of categorical bauble in the population of interest is correct
…not correct