Question

classification of variables and levels of measurement
(a) temperature (in degrees fahrenheit)
(b) type of shirt on the clearance rack (long - sleeved with collar, long - sleeved without collar, short - sleeved with collar, or short - sleeved without collar)
(c) amount (in fluid ounces) of coffee in a cup dispensed by a vending machine

Explanation:

• For (a) Temperature (in degrees Fahrenheit):
• Temperature is a numerical measurement. So, it is quantitative.
• Degrees Fahrenheit has an arbitrary zero - point (the zero on the Fahrenheit scale does not mean the absence of temperature). So, it is an interval level of measurement.
• For (b) Type of shirt on the clearance rack:
• The types of shirts are non - numerical categories. So, it is categorical.
• There is no inherent order in the types of shirts (e.g., long - sleeved with collar is not "more" or "less" than short - sleeved without collar in a meaningful numerical order). So, it is a nominal level of measurement.
• For (c) Amount (in fluid ounces) of coffee in a cup dispensed by a vending machine:
• Fluid ounces is a numerical measurement. So, it is quantitative.
• Zero fluid ounces means there is no coffee. So, it has a true zero - point and is a ratio level of measurement.

Answer:

(a) Quantitative, Interval
(b) Categorical, Nominal
(c) Quantitative, Ratio