10 Classify the following sampling methods indicated by the respective statement

Question

10 Classify the following sampling methods indicated by the respective statements as either random, stratified, systematic, cluster or convenience: a. A complete list of all stockholders is compiled, and every 500th name is selected from each bro- kerage house. b. At the annual stockholders' meeting, a survey is conducted of all who attend. c. Five different brokerage houses are randomly selected, and a survey is made of all of their clients who won shares of Coca Cola d. A computer file of all stockholders is compiled so that they are all numbered consecutively, then random numbers generated by computer are used to select the sample of stockholders All of the stockholders' zip codes are collected, and five stockholders are randomly selected from each zip code. e.

Explanation / Answer

Answer - a : Systematic sampling, since draws are coming after specific numer of time.

Answer -b : convenience sampling, since sample are only taken from available populations at that time.

Answer - c: cluster sampling since sampling is only done to group who won the coca cola shares.

Answer - d: random sampling since random order is used get the sample

Answers - e: stratified sampling, since first groups are made from population based on zip code.

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