A Professor Ranks the Grades of Students in Each of Three

question 20

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:

Primary Bronchus

The major air passage that branches from the trachea into the lungs, dividing into smaller bronchi.

Alveoli

Small air sacs in the lungs where gas exchange between the air and blood occurs.

Hilus

A part of an organ where blood vessels, nerves, and other structures enter or exit.

Oropharynx

A part of the pharynx situated between the soft palate and the epiglottis, involved in swallowing.