Categorize these measurements associated with student life according to level: nominal, ordinal, interval, or ratio.

(a)

Length of time to complete a exam

nominal ordinal interval ratio

(b)

Time of first class

nominal ordinal interval ratio

(c)

Major field of study

nominal ordinal interval ratio

(d)

Course evaluation scale: poor, acceptable, good

nominal ordinal interval ratio

(e)

Score on last exam (based on 100 possible points)

nominal ordinal interval ratio

(f)

Age of student

nominal ordinal interval ratio