A Researcher Wants to Determine Whether the Means of Two

question 92

Multiple Choice

A researcher wants to determine whether the means of two independent populations are the same.She has two independent random samples,one from each population,shown in the following table: She uses the Mann-Whitney U test and a significance level of 0.05.The appropriate
Decision is ______.

• A) reject the null hypothesis that the two populations have different means
• B) fail to reject the null hypothesis that the two populations have different means
• C) reject the null hypothesis that the two populations have equal means
• D) fail to reject the null hypothesis that the two populations have equal means
• E) do nothing

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