Basic Statistics: Tales of Distributions 10th Edition

Published by Cengage Learning
ISBN 10: 0-49580-891-1
ISBN 13: 978-0-49580-891-6

Chapter 14 - Chi Square Tests - Problems - Page 316: 14.8


A professor claims that his grades are distributed as follows: Stated Grade Distribution: A=7% B=24% C=38% D=24% F=7% A colleague collects data on the 340 students that the professor taught this year and finds: Actual Grades this Year A=20 B=74 C=120 D=88 F=38

Work Step by Step

This is a goodness of fit chi square problem. We are given a hypothetical model of the data distribution, and we are to determine if our actual data values fit intro this model.
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