Imagine that marketing researchers working for a food company want to determine whether children would prefer ketchup of a different color. They develop red, green, and blue ketchups that all taste the same and have children (N = 7) taste each of the ketchups (a correlated groups design) and rank them on a 5-point scale with 5 indicating the highest preference. The data from the 7 subjects appear below:

a. What statistical test should be used to analyze these data?

b. Identify H₀ and H_a for this study.

c. Conduct the appropriate analysis.

d. Should H₀ be rejected? What should the researcher conclude?

Transcribed Image Text:

Ketchup Color Green Blue Subject Red 4 2 3 3 5 4 4 3 3 4 3 3