The Best Tasting Ice Creams Are Generally High in Fat

question 9

Essay

The best tasting ice creams are generally high in fat content, which gives them a creamy texture. Four brands of ice cream were tested by consumers who graded their level of creaminess (A = very creamy to F = not creamy). Each brand was rated by a different group of consumers (the data are shown below). Are there differences in perceived creaminess among the four brands?
a. What nonparametric method is appropriate for analyzing these data?
b. State the null and alternative hypotheses.
c. Perform the test and state your conclusion at α = 0.10.
d. If these data did satisfy the assumptions for performing ANOVA, what are the disadvantages of using this nonparametric method instead?

---

Definitions:

Asynchronous Tools

Digital tools or platforms that allow communication or work to take place at different times, not requiring simultaneous participation.

Grammar Checkers

Software tools that analyze text for grammatical accuracy, suggesting corrections and improvements.

Style Checkers

Software tools that analyze writing for adherence to specific styles, grammar, and syntax rules.

Spelling Checker

A software tool designed to identify and correct misspelled words in a text.