Which method of substitution is best illustrated in the following example? Typical response rate for mail surveys is 20 percent and the desired final sample should be 200. Therefore, the initial sample size should be 1000.
A) drop-down substitution
B) drop-up substitution
C) oversampling
D) resampling
E) logical substitution

Question

Quizplus · Accepted Answer

This is an example of oversampling, where the initial sample size is larger than what is needed to account for the anticipated response rate. In this case, the desired final sample size is 200 and with a response rate of 20%, the initial sample size required would be 1000 (i.e. 1000 x 20% = 200).

Which Method of Substitution Is Best Illustrated in the Following