In the chi-square test for equality of proportions, the procedure is identical test for independence of two variables with the exception that in the test for equality of proportions:
a. each column consists of observations for an independent sample.
b. each table will always have 2 rows.
c. the number of degrees of freedom will be the number of rows times the number of columns.
d. both a and b.
e. all of the above.
Question 2
The chi-square test of independence is based upon:
a. two qualitative variables.
b. two quantitative variables.
c. three or more qualitative variables.
d. three or more quantitative variables.