Chapter 5.A, Problem 1QQ

You conduct a poll in which you randomly select 1000 registered voters from Texas and ask if they approve of the job their governor is doing. The population for this study is

a. all registered voters in the state of Texas.

b. the 1000 people that you interview.

c. the governor of Texas.

To determine

What is meant by Population of a study.

Answer to Problem 1QQ

Solution:

a. All registered voters in the state of Texas.

Explanation of Solution

Given:

Here in our question a poll is conducted by randomly selecting 1000 registered voters from Texas and ask if they approve of the job of their Governor is Doing.

Explanation:

In any statistical survey we select a bunch of people from the entire pool and conduct our survey on them and we try to estimate the actual parameter. The bunch of people we select is known as Sample and the entire pool of people from which the Sample is selected is known as Population.

For Example: If I want to know who is going to win in next election for mayor in a city, I select randomly a set of people from all different streets of the city and ask them who is going to win among Mr. X and Mr. Y. So, who ever got the majority of votes from the people we selected, I conclude that person is going to win the next mayor election. So here the bunch of people selected are known as Sample and All the people who can vote in the city are known to be the Population.

Conclusion:

So here the selected 1000 registered voters from Texas whom we asked about Governor is our Sample and our Sample is selected from entire registered voters in Texas. So, all registered voters in Texas is our Population.