Question

For each of the variables described below, indicate whether it is a quantitative or a categorical (qualitative) variable. Also, indicate the level of measurement for the variable: nominal, ordinal, interval, or ratio. Make sure your responses are the most specific possible. Variable Type of variable Quantitative (a) Temperature (in degrees Celsius) Categorical Quantitative Level of measurement Nominal Ordinal Interval Ratio Nominal Ordinal Interval Ratio Nominal Ordinal Interval Ratio (b) Name of cell phone service provider Categorical OOOOOOOOO Quantitative (c) Playing time (in seconds) of a DVD Categorical х 5 ?

Answer 1

Part a

Variable: Temperature (in degrees Celsius)

Type of variable: Quantitative

Level of measurement: Interval

It has interval level of measurement because the zero point in this case is arbitrary. It is quantitative because it represents numbers.

Part b

Variable: Name of cell phone service provider

Type of variable: Categorical

Level of measurement: Nominal

This variable is categorical variable because data is categorized accordance with different cell phone service provider. The data set consist of only names of the cell phone service provider, so it is a nominal scaled variable.

Part c

Variable: Playing time (in seconds) of DVD

Type of variable: Quantitative

Level of measurement: Ratio

This variable represents amount of time or quantity of time in seconds, so this is a quantitative variable. This variable represents continuous data with real zero, so it has ratio level of measurement.