Categorize these measurements associated with student life a

Categorize these measurements associated with student life according to level: nominal, ordinal, interval, or ratio. (a) Length of time to complete an exam (b) Time of fi rst class (c) Major field of study (d) Course evaluation scale: poor, acceptable, good (e) Score on last exam (based on 100 possible points) (f) Age of student

Solution

(a)

Length of time to complete an exam: It is a ratio level variable. Because zero means absence of time.

(b)Time of first class : It is an interval level variable. Becuase zero does not have any specific meaning.

(c) Major field of study : It is a nominal variable. Beucase major field of study are mututally exclusive and categories do not have any specific order.

(d)Course evaluation scale: poor, acceptable, good : It is ordinal variable.

Because it a categorical variable and categories have a specific order.

(e)Score on last exam (based on 100 possible points): It is a ratio level variable becuase zero means zero test score.

(f)Age of student: It is a ratio level variable.