Introduction To Statistics And Data Analysis
6th Edition
ISBN: 9781337793612
Author: PECK, Roxy.
Publisher: Cengage Learning,
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Textbook Question
Chapter 2.2, Problem 31E
The financial aid advisor of a university plans to use a stratified random sample to estimate the average amount of money that students spend on textbooks each term. For each of the following proposed stratification schemes, discuss whether it would be worthwhile to stratify the university students in this manner. (Hint: Remember that it is desirable to create strata that are homogeneous.)
- a. Strata corresponding to class standing (freshman, sophomore, junior, senior, graduate student)
- b. Strata corresponding to field of study, using the following categories: engineering, architecture, business, other
- c. Strata corresponding to the first letter of the last name: A–E, F–K, etc.
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Chapter 2 Solutions
Introduction To Statistics And Data Analysis
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