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Read the scenario and pick the most appropriate nonparametric statistical test (

ID: 3071089 • Letter: R

Question

Read the scenario and pick the most appropriate nonparametric statistical test (assume several assumptions of parametric tests were violated). 9) Imagine that marketing researchers working for a foodAnswer: 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 taste each of the ketchups (a correlated-groups design) and rank them. 10) A researcher is interested in comparing GRE scores of Answer: students who take an official GRE prep course versus students who have never taken the course. The GRE scores tend to be skewed

Explanation / Answer

9)

hre as this is a test which contain more than 2 groups therefore we are supposed to use

Friedman F test test for comparing preferecne of colour(please tryKruskal wallis if this comes wrong)

10)

Wilcoxen rank sum test or Mann Whitney test ( both are equivalent)