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Chapter 7: Q.1 (page 428)

Identify the population, the parameter, the sample, and the statistic in each setting.

Stop smoking! A random sample of 1000people who signed a card saying they intended to quit smoking were contacted nine months later. It turned out that 210(21%)of the sampled individuals had not smoked over the past six months.

Short Answer

Expert verified

The individuals that are studied are considered as the population

The sample is 1000people.

The parameter the proportion of people who have not smoked in the last 6months.

The statistic is the proportion of the people that have not smoked in the past 6months.

Step by step solution

01

Given Information

An irregular example of individuals who marked a card saying they planned to stop smoking were reached nine months after the fact. It turned out that 210(21%)of the tested people had not smoked in the course of recent months.

02

tep 2 Explanation

The individuals that are studied are considered as the population. Here, people who are agreeing that they are intended to quit smoking.

A sample is the subpart of the population that is studied to get details about the population. Here, the sample is 1000people.

The parameter is the measure of the original population. Here, is the proportion of people who have not smoked in the last 6months.

The statistic is the measure of the sample. Here, is the proportion of the people that have not smoked in the past 6months.

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