Numbers are often assigned to data that are categorical in nature.
(a) Consider these number assignments for category items describing electronic ways of expressing personal opinions:
1 = Twitter; 2 = e-mail; 3 = text message; 4 = Face book; 5 = blog
Are these numerical assignments at the ordinal data level or higher?
Explain.
(b) Consider these number assignments for category items describing usefulness of customer service:
1 = not helpful; 2 = somewhat helpful; 3 = very helpful;
4 = extremely helpful
Are these numerical assignments at the ordinal data level? Explain. What about at the interval level or higher? Explain.