Q1.20: \"Kraft Foods\" provides a survey in front of \"Walmart\" stores asking b

Question

Q1.20: "Kraft Foods" provides a survey in front of "Walmart" stores asking bypassers "Do you eat our products in your everyday life?" 66% of respondents have given the answer "Yes". Is it reasonable to generalize this result and estimate that 66% of citizens eat products of "Kraft Foods"? A) The result can be generalized since everybody can take part in the survey. B The result cannot be generalized since the sample is not representative C The result cannot be generalized since not all the citizens were asked. D The result can be generalized since the sample was chosen randomly.

Explanation / Answer

Answer: Option B. The result cannot be generalized since the sample is not representative.

It is only one type of store and there will be many citizens who prefer other stores. Also, since this is voluntary, there can be error in the information from many choosing not to take the survey. In effect, this sample is not representative of all citizens.

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