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# Solved: Marijuana Survey Identify the type of sampling

ISBN: 9780321924599 237

## Solution for problem 9 Chapter 1

Essentials of Statistics | 5th Edition

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Problem 9

Marijuana Survey Identify the type of sampling (random, systematic, convenience, strat-ified, cluster) used when a sample of the 1500 survey responses is obtained as described. Thendetermine whether the sampling scheme is likely to result in a sample that is representative ofthe population of all adults.a. A complete list of all 241,472,385 adults in the United States is compiled and every150,000th name is selected until the sample size of 1500 is reached.b. A complete list of all 241,472,385 adults in the United States is compiled and 1500 adultsare randomly selected from that list.c. The United States is partitioned into regions with 100 adults in each region. Then 15 ofthose regions are randomly selected, and all 100 people in each of those regions are surveyed.d. The United States is partitioned into 150 regions with approximately the same numberof adults in each region, then 10 people are randomly selected from each of the 150 regions.e. A survey is mailed to 10,000 randomly selected adults, and the 1500 responses are used.

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Week 4 lecture content, 2.5 and 2.6 I. 2.5 A. Univariate summary and Bivariate summary i. Univariate summary uses graphical or numerical summaries for one variable data sets. ii. Bivariate is the same thing as univariate...

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