On the basis of the sample of 1,960 consumers, we estimate that, if it is marketed, 60 percent of all consumers will purchase the chicken dinner (1,176/1,960) × 100 = 60 percent.
Inferential statistics, because a sample was used to draw a conclusion about how all consumers in the population would react if the chicken dinner were marketed.
12
Age is a ratio-scale variable. A 40-year-old is twice as old as someone 20 years old.
Nominal scale. We could arrange the states in any order.