Suppose a Research Uses the Mann-Whitney Test to Determine If

question 74

Multiple Choice

Suppose a research uses the Mann-Whitney test to determine if there is a difference in the volume of text messages sent by a high school student living in a rural area versus an urban area during the month of December.Eight rural high school students and 9 urban high school students were included in the study. If,among all 17,the U statistic is 29,n₁=8 and n₂ = 9 what is the the conclusion at α=0.05 is __________

• A) reject the hypothesis that the number of text messages sent in December is identical
• B) do not reject the hypothesis that the number of text messages sent in December is identical.
• C) reject the hypothesis that the average number of text messages is identical.
• D) do not reject the hypothesis that the average number of text messages is identical.
• E) accept the hypothesis that the number of text messages sent in December identical.

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