Question

question
a market researcher surveys households to ask what brand of shampoo is preferred. what is the level of measurement of the data?
select the correct answer below:
○ nominal
○ ordinal
○ interval
○ ratio

Explanation:

Nominal level data categorizes variables with no inherent order or ranking. Shampoo brand preferences are just labels for different groups, with no hierarchy or numerical value meaning beyond classification. Ordinal data has a rank order, interval has ordered values with consistent intervals but no true zero, and ratio has a true zero and meaningful ratios, none of which apply here.

Answer:

nominal