Final answer:
Rating a restaurant by number of stars is an example of the ordinal level of measurement where categories can be ranked in order but the exact differences between the ranks are not measurable.
Step-by-step explanation:
The correct answer is option ordinal scale level.
The practice of rating a restaurant by number of stars is indeed an example of the ordinal level of measurement. This is because, while the stars represent a ranking system going from fewer stars to more stars, indicating ascending quality or satisfaction, they do not show exact differences or ratios between the levels.
Each additional star suggests a better quality, but how much better is not quantifiable. For instance, we cannot say that a five-star restaurant is twice as good as a two-and-a-half-star restaurant, which is an attribute that would be indicative of ratio level measurement.
Similarly, responses on a cruise survey with options like excellent, good, satisfactory, and unsatisfactory are also ranked on an ordinal scale because they are ordered from most to least desired. Nonetheless, the exact differences between these categories cannot be precisely measured.