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Homework answers / question archive / Which of the following is not a requirement of a valid sampling technique? a
Which of the following is not a requirement of a valid sampling technique?
a. All members of the population are coded.
b. There is a definite procedure for selecting participants in the sample.
c. The interviewer has no choice in the selection of whom they interview.
d. The procedure for selection involves the use of probability.
e. All of these are required.
One simple way to select a sample is through the use of a random number generator. With this method, we know for sure that every member is coded. So a is correct
Each sampling scheme follows a unique procedure on how to select its random individuals. So, b is correct.
Each selection is absolutely random, so the interviewer definitely does not have a choice on who they pick. Thus, c is correct as well.
With a random number generator, each individual has an equal chance of being selected. However, in such a scheme as stratified sampling some individuals have a higher chance of being selected than otSince the sample standard deviation depends upon the sample, it has greater variability. Thus the standard deviation of the sample is greater than that of the population.hers. So, d is correct as well.
Hence, all of these are clearly required meaning that e is the correct choice.
