Mathematics, 12.12.2019 20:31 hardwick744
In order to select a sample of undergraduate students in the united states, a simple random sample of four states is selected. from each of these states, a simple random sample of two colleges or universities is then selected. finally, from each of these eight colleges or universities, a simple random sample of 20 undergraduates is selected. the final sample consists of 160 undergraduates. what sampling technique is being used?
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