Question

Determine whether the following possible responses should be classified as interval, nominal, ratio, or ordinal data.

1. The starting salaries of new Ph.D. graduates from a statistics program

2. The letter grades received by students in a computer science class

3. The age of each of your classmates

4. The number of students in a statistics course

Answer 1

The level of measurement is classified into the interval, nominal, ratio, and ordinal data.

Interval data is the data that provide differences between the measurement but there is no zero present in the measurement.

Nominal is the data that provide the categories pattern but no ranking or cannot be arrange in order pattern.

Ratio data are the data that provide the differences between the measures and presence of true zero.

Ordinal data includes the data that measurement categories can be given in raking or order patterns.

1. The starting salaries of new Ph. D graduates from statistic program --- interval data

2. The letter grades received by students in a computer science class --- Ordinal data

3. The age of the each of your class- ratio data

4. The number of students in a statistics class- Interval data