Question

Chapter 21:

Decide first whether data are quantitative or qualitative. Unless mentioned otherwise, no assumption has been seriously violated, and therefore the appropriate test should be selected from among t , F , or χ² tests. Specify the precise form of the test. For example, specify that the t test is for two population means with related samples, or that the χ² test is for two variables, or that the F test is for repeated measures.

#	Question	Is the data quantitative or qualitative?	What kind of test should you use: t-test (specify type), F test (specify type) or X2?
21.7	An investigator wishes to test whether creative artists are equally likely to be born under each of the 12 astrological signs.
21.8	To determine whether there is a relationship between the sexual codes of primitive tribes and their behavior toward neighboring tribes, an anthropologist consults available records, classifying each tribe on the basis of its sexual codes (permissive or repressive) and its behavior toward neighboring tribes (friendly or hostile).

Answer 1

An investigator wishes to test whether creative artists are equally likely to be born under each of the 12 astrological signs.

The data is quantitative, so the investigator is conducting chi-square goodness of fit test for one variable.

To determine whether there is a relationship between the sexual codes of primitive tribes and their behavior toward neighboring tribes, an anthropologist consults available records, classifying each tribe on the basis of its sexual codes (permissive or repressive) and its behavior toward neighboring tribes (friendly or hostile).

The data is quantitative, so the anthropologist is conducting a chi-square test for independence for two variables.