9. Martjuana Survey Identify the type of sampling (random, systematic, convenien

Question

9. Martjuana 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. Then determine whether the sampling scheme is likely to result in a sample that is representative of the population of all adults. a. A complete list of all 241,472.385 adults in the United States is compiled and every 150,000th name is selected until the sample size of 1500 is reached b. A complete list of all 241.472,385 adults in tdhe United States is compiled and 1500 aduls are randomly selected from that list. c. The United States is partitioned into regions with 100 adults in each region. Then 15 of those regions are randomly selected, and all 100 people in cach of those regions are surveyed. d. The United States is paritioned into 150 regions with approximately the same number of adults in each region, then 10 people are randomly selected from cach of the 150 regions e. A survey is mailed to 10,000 randomly selected adults, and the 1500 responses are then 10 people are randomly selected from each of the 150 regions

Explanation / Answer

a: systematic sampling - likely to be representative of population

b: random sampling: unlikely to be representative of population

c: cluster sampling: unlikely to be representative of population

d: stratified sampling: likely to be representative of population

e: convenience sampling: unlikely to be representative of population

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