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Chapter 4: Q 7. (page 226)

Instant opinion A recent online poll posed the question 鈥淪hould female athletes be paid the same as men for the work they do?鈥欌�� In all, 13,147(44%)said 鈥淵es,鈥欌�� 15,182(50%)said 鈥淣o,鈥欌�� and the remaining 1448 said, 鈥淒on鈥檛 know.鈥� In spite of the large sample size for this survey, we can鈥檛 trust the result. Why not?

Short Answer

Expert verified

It is biased in favor of people who feel strongly about the problem being surveyed.

Step by step solution

01

Given information

Female athletes should be paid the same as men for the work they undertake, according to an online poll. In that poll, 13,147 people replied yes (44 percent), 15,182 said no (50 percent), and 1448 indicated they didn't know.

02

Concept

A simple random sample (SRS) of size n is made up of n people chosen from the population with an equal chance of being the sample that is actually chosen.

03

Explanation

This is a voluntary answer sampling online survey. Voluntary response samples draw people who are passionate about the topic, resulting in bias. The sample is biased since it does not represent the entire population; rather, it represents a subset of the population with strong opinions. We can't trust the results since it is biased in favor of people who feel strongly about the problem being surveyed, notwithstanding the high sample size.

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