Exam 13: Nominal Categorical Data and the Chi Square

The independent variable in the study was

All nominal categories

In the chi square table of critical values, as degrees of freedom increase

In setting up the contingency table, whether the groups caught the flu should be placed in the

When the 2 by 2 chi square contingency table contains expected frequencies of less than 5, most statisticians agree that

In a 1 by k chi square, the expected frequency is always equal to k-1.

Correlations may never be established when the data form is nominal.

The Yates correction may only be applied

The coefficient of contingency (C) demands that there be only 4 independent cells.

The degrees of freedom for chi square are based on the sample size.

Use the following: Hypothesis: Police citations for traffic violations are a function of the age of the driver. A random sample of 50 drivers was selected from the population of cited traffic violators during a one-month period. The drivers were categorized according to age, and the frequencies for each category were established. AGE OF DRIVER 18-27 28-37 38-47 48-57 58 and over fo 35 25 15 13 12 -Indicate the number of degrees of freedom.

The McNemar test may be used on nominal data taken from

When comparing two or more groups with regard to some observed frequencies, the dependent variable should be set in the

In setting up the contingency table, whether the groups received the vitamin C should be placed in the

When using chi square, the larger the alpha level

The appropriate analysis of these data would involve

When doing a 2 by 2 chi square, when any expected frequency is less than 10, the Yates correction suggests that the researcher should

Chi square may only be used for the analysis of post-facto research data.

In evaluating these data, the chi square's degrees of freedom would equal

If during a presidential campaign, a certain random sample of voters indicated 30 persons for Clinton, 25 for Bush, and 10 for Perot, the resulting scale would be