Twenty Customers Are Randomly Chosen and Each Is Given a Sample

question 35

Multiple Choice

Twenty customers are randomly chosen and each is given a sample of Nut Butter ice cream to taste. The customers rank the taste of the ice cream on a 10-point scale. Each is then given a sample of Chewy Gooey ice cream to taste and rank on a 10-point scale. Based on the 20 customers' ratings of each flavor, the research analyst conducting the survey wishes to determine if one flavor is preferred over the other. Which nonparametric test would you use to determine if there is a difference in the ratings?

• A)Wald-Wolfowitz one-sample runs test
• B)Wilcoxon signed-rank test
• C)Wilcoxon rank sum (Mann-Whitney) test
• D)Kruskal-Wallis test

---

Definitions:

Physical Structure

The composition and arrangement of the material parts of a body or object.

Preterm Infants

Are babies born before completing the standard 37 weeks of gestation, often requiring specialized medical care.

Motor Milestones

Developmental stages marking significant points in motor skills development, such as crawling, walking, and grasping.

Learned Ability

A skill or competence acquired through practice, study, or experience.