1.9 Employee application data. The personnel department keeps records on all employees in a company. Here is the information that they keep in one of their data files: employee identification number, last name, first name, middle initial, department, number of years with the company, salary, education (coded as high school, some college, or college degree), and age.

1. (a) What are the cases for this data set?

2. (b) Describe each type of information as a label, a quantitative variable, or a categorical variable.

3. (c) Set up a spreadsheet that could be used to record the data. Give appropriate column headings and five sample cases.