A Professor Ranks the Grades of Students in Each of Three

question 49

Multiple Choice

A professor ranks the grades of students in each of three sections of a statistics course.He computes H = 6.83 for the Kruskal-Wallis H test to test for differences between the sections.What is the decision for this test?

• A)Retain the null hypothesis.
• B)Reject the null hypothesis.
• C)There is not enough information to answer this question.

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Definitions:

Probability Range

A span of values within which a probable outcome is expected to occur, often expressed as a percentage.

Standard Deviation

A statistical measure of the dispersion of returns for a given security or market index.