Identify the sampling techniques used, and discuss potential sourcos of bias (if

Question

Identify the sampling techniques used, and discuss potential sourcos of bias (if any) Explsin Chosen at random, 410 customers at a restaurant are contacted and asked their opinions of the service they recoived What type of sampling is used? O A. Cluster sampling is used, since the population of customers is dvided into groups and several groups are O B. Systematic samping is used, since customers are solectod at fxed ntervals, ? ?. convenience sampling is used, since the business is selecting ton its astmes ta, are oasest o torn O D. Stratified sampling is used, since the population of customers O E. Simple What potential sources of bias are present, f any? Select all that apply selectod and all of thor members samplod s dvided nto groups and a random sample s selectod fom each grup random sampling is used, since the business is selecting from ts customers at random, and all samples of 410 customers have an equal chance of being selected A. If there is a regular pattern to the customers, it is possible for the sample to not be reprosentative ? The wording o the question asked to the customers may influence them towards a particular response The results would not be us ble rtis case C. The sample consists only of customers that are oasy to reach. This sample may not be representative of the population ? D. There are no potential sources of bias Click to select your answer(s)

Explanation / Answer

Solution:

What type of sampling is used ?

E. Simple random sampling is? used, since the business is selecting from its customers at? random, and all samples of 410 customers have an equal chance of being selected.

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What potential sources of bias are? present, if? any? Select all that apply.

A. If there is a regular pattern to the? customers, it is possible for the sample to not be representative.

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.

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