Classify each of the following as nominal, ordinal, interval or ratio data.
a. The ranking of a company in the Fortune 500
b. The number of tickets sold at a movie theater on any given night
c. The identification number on a questionnaire
d. Per capita income
e. The trade balance in dollars
f. Profit/loss in dollars
g. A company’s tax identification
h. The Standard & Poor’s bond ratings of cities based on the following scales:
Rating ................ Grade
Highest quality ............ AAA
High quality .............. AA
Upper medium quality ........... A
Medium quality ............ BBB
Somewhat speculative ........... BB
Low quality, speculative .......... B
Low grade, default possible ........ CCC
Low grade, partial recovery possible .... CC
Default, recovery unlikely .......... C