Identify the sampling techniques used, and discuss potential sources of bias (if
ID: 3297166 • Letter: I
Question
Identify the sampling techniques used, and discuss potential sources of bias (if any), Explain. Chosen at random, 700 customers at an electronics store are contacted and asked their opinions of the service they received. What type of sampling is used? A. Systematic sampling is used, since customers are selected at fixed intervals B. Simple random sampling is used, since the business is selecting from its customers at random, and all samples of 700 customers have an equal chance of being selected C. Stratified sampling is used, since the population of customers is divided into groups and a random sample is selected from each group. D. Cluster sampling is used, since the population of customers is divided into groups and several groups are selected and all of their members sampled. E. Convenience sampling is used, since the business is selecting from its customers that are easiest to reach. What potential sources of bias are present, if any? Select all that apply. A. The sample consists only of customers that are easy to reach. This sample may not be representative of the population. B. The wording of the question asked to the customers may influence them towards a particular response. The results would not be usable in this case. C. If there is a regular pattern to the customers, it is possible for the sample to not be representative. D. There are no potential sources of bias.Explanation / Answer
Since the selections are made randomly and all the customers have equal chance of being selected, the Sampling technique which is used here is Simple random sampling.
Hence, Option (B) is the correct choice. (Ans).
From the given information, there are no potential sources of bias.
Hence, Option (D) is the correct choice. (Ans).