magine you’re planning to estimate the price of the average book at your college bookstore. The bookstore carries 13,000 titles, but you plan to sample only 200 books. You will select a sample of 200 books, record the price of each book, and use the average of the 200 books to estimate the average price of the 13,000 titles in the bookstore. Assume that the bookstore can give you access to a database that lists all 13,000 titles that it carries. 1. How would you collect a cluster sample from the scenario above? 2. How would you collect a simple random sample of books? 3. Discuss one possible way that you could end up with a biased sample when conducting this study (hint: be sure to discuss how the sample could be gathered and the type of bias that could occur

Database Systems: Design, Implementation, & Management
11th Edition
ISBN:9781285196145
Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Chapter10: Transaction Management And Concurrency Control
Section: Chapter Questions
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Imagine you’re planning to estimate the price of the average book at your college bookstore. The bookstore carries 13,000 titles, but you plan to sample only 200 books. You will select a sample of 200 books, record the price of each book, and use the average of the 200 books to estimate the average price of the 13,000 titles in the bookstore. Assume that the bookstore can give you access to a database that lists all 13,000 titles that it carries. 1. How would you collect a cluster sample from the scenario above? 2. How would you collect a simple random sample of books? 3. Discuss one possible way that you could end up with a biased sample when conducting this study (hint: be sure to discuss how the sample could be gathered and the type of bias that could occur).
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