Question

The supervisor of a very large plant obtained the times (in seconds) to complete a task for a random sample of employees. This information and other data about the employees are stored in the data file Completion Times. a. Give an example of a categorical variable with ordinal responses. b. Give an example of a categorical variable with nominal responses. c. Give an example of a numerical variable.

Answer 1

Answer:

Examples of categorical variables are race, sex, age group, and educational level. While the latter two variables may also be considered in a numerical manner by using exact values for age and highest grade completed, it is often more informative to categorize such variables into a relatively small number of groups.