A) Does a person's letter grade in statistics depend on whether he or she is a member of a Greek organization? In three statistics classes, data is collected on the letter grades of students belonging to Greek organizations and of students who are not members. What is the null hypothesis for this study?
1)Members and nonmembers of Greek organizations do not tend to differ in letter grades.
2)Members and nonmembers of Greek organizations tend to differ in letter grades.
3)There is a relationship between Greek organization membership and letter grade.
4)The distributions of letter grades for members and nonmembers of Greek organizations are the same.
B)?The interpretation of the Spearman correlation coefficient is identical to that for the:
1) independent-samples t test.
2) Pearson correlation coefficient.
3) chi-square test for independence.
4) Mann?Whitney U test.
C)The chi-square test used for two nominal variables is called the chi-square test for independence because one is assessing:
1) an assumption of the chi square that the two variables are independent of one another.
2) whether the dependent variable is related to the independent variable.
3) whether the effect of each variable is independent of the other variable.
4) whether the distribution in the sample is independent of the distribution in the population.
D)?A chi-square test for goodness of fit is an appropriate statistical test to use when the study has:
1) one nominal dependent variable.
2) one scale independent variable.
3) two nominal dependent variables.
4) two scale independent variables.
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