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Chapter 4: Q. 7 (page 236)

Online reviews Many websites include customer reviews of products, restaurants, hotels,

and so on. The manager of a hotel was upset to see that 26%of reviewers on a travel

website gave the hotel 鈥�1star鈥濃�攖he lowest possible rating. Explain how bias in the

sampling method could affect the estimate.

Short Answer

Expert verified

The answer is a voluntary response sample.The subjects themselves can determine whether or not they are in the sample. We will only have data about the strongest opinions

Step by step solution

01

Given information

We have to find the bias in the sampling method.

02

Explanation

The sample in the exercise prompt is a text voluntary response sample because the subjects must willingly answer the online poll (you can view the online poll without answering it), and so the subjects themselves can determine whether or not they are in the sample.Because people with the strongest opinions choose to engage in a voluntary response sample, we will only have data about the strongest opinions, resulting in us continuously overestimating or underestimating the actual opinions.

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