Exercise 14.3 gave the data in the table for scores on the first quiz for ninth-grade students
Question:
Group 1: Never studied foreign language before, but have good English skills
Group 2: Never studied foreign language before; have poor English skills
Group 3: Studied at least one other foreign language
The table also shows results of using MINITAB to perform the Kruskal-Wallis test.
a. Find the rank associated with each observation, and show how to find the mean rank for Group 1.
b. Report and interpret the P-value for the test.
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Related Book For
Statistics The Art And Science Of Learning From Data
ISBN: 9780321755940
3rd Edition
Authors: Alan Agresti, Christine A. Franklin
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