A researcher is comparing random samples of white,black,and Hispanic Americans for differences in income,family size,and years of education.Which of the following tests of significance would be useful for all three dependent variables?
A)t test for small samples
B)t test for difference in means
C)ANOVA
D)the test for the significance of the difference between sample proportions

Question

Quizplus · Accepted Answer

ANOVA (Analysis of Variance) is used to compare means of three or more groups, which is appropriate for comparing the income, family size, and years of education among the three ethnic groups. T-test for difference in means is also a possible choice, but it only works for two groups. The test for the significance of the difference between sample proportions is only appropriate for comparing proportions or percentages, which is not what this question is asking for. T-test for small samples can be used if the sample size is small, but the question does not provide information about sample size.

A Researcher Is Comparing Random Samples of White,black,and Hispanic Americans