Q.1 - The Practice of Statistics for AP

Question

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

Stop smoking! A random sample of $1000$ people 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.

Step-by-Step Solution

Answer

The individuals that are studied are considered as the population 

 The sample is $1000$ people. 

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

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

Step 2 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.

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 $1000$ people.

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

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