The Best Tasting Ice Creams Are Generally High in Fat

Multiple Choice

The best tasting ice creams are generally high in fat content, which gives them a creamy texture.Four brands of ice cream (two national and two local) were tested by consumers who rated how "creamy" they tasted on a 5-point Likert type scale (1 = not creamy to 5 = very creamy) .Each brand was rated by a different group of consumers.The appropriate nonparametric method to use for these data is the ________________________ .

A) Kruskal-Wallis test
B) Kendall's tau
C) Wilcoxon signed-rank test
D) Wilcoxon rank sum test
E) Spearman's rho