This Quiz: 60 pts po Identify the sampling techniques used, and discuss potentia

Question

This Quiz: 60 pts po Identify the sampling techniques used, and discuss potential sources of bias (if any) Explain. In 1965, researchers used random digit dialing to call 1100 people and ask what obstacles kept them from buying insurano What type of sampling was used? O A. Simple random sampling was used, since each number had an equal chance of being dialod, so all samples kept them from buying insuranoo of 1100 phone numbers had an equal chance of being selected. B. Cluster sampling was used, since the phone numbers were divided into gresps, several groups were selacted, and each number in those groups was . Systematic sampling was used, since phone numbers were selected from a list using a fo ed interval between phone numbers O D. Convenience sampling was used, since the 1100 phone numbers that were eas-est to reach were seiected. What potential souroes of bias were present, if any? Select ali that apply A. The sample only consisted of members of the population that were easy to gel. These members may have not been representative of the popuíation older or weathier on average, and may not have been representative of the entire population C ndividuals may have refused to participate in the sample. This may have made the sample less representat e of the poo lato D. Individuals may have not been available when the researchers were calling Those individuals that were avaiable may have rvot been representative of the popuistion. E. There were no potental sources of bias

Explanation / Answer

Q1 ) Answer: Simple random sampling was used, since each number had an equal chance of being dialed , so all samples of 1100 phone numbers had an equal chance of being selected.

Q 2) Answer: Option B, C, D

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