Many service companies collect data via a follow-up survey of their customers. Suppose, in order to ascertain customer sentiment, a certain air line sends an email to customers immediately following a flight. The following question is asked, among others.

How likely are you to recommend this air line to others?

The possible responses are given below.

• Definitely Will
• Probably Will
• May or May Not
• Probably Will Not
• Definitely Will Not

(a)

Are the data collected by this air line in this example quantitative or categorical?

quantitative

categorical

(b)

What measurement scale is used?

interval scale

nominal scale

ordinal scale

ratio scale