Question

A national polling organization wants to estimate the percentage of all teenagers who believe social security will 'be there' for them. The organization surveys a random sample of 1500 teenagers, and 37% of this sample says that they believe social security will 'be there' for them. In this survey, what is the population of interest?
A) The people in the sample who believe social security will 'be there' for them.B) All teenagers.C) The 1500 teenagers who were surveyed.D) Teenagers who believe social security will 'be there' for them.

Answer 1

Answer: B) All teenagers.

Step-by-step explanation:

In statistical survey , a population is a large group of individuals that share some similar characteristics according to the researchers's point of view or the demand of the study.

When the population very large , then he take a sample of population that represents the whole population.

For example : If a researcher wants know the average weight of women in the university , he will need the data of all women in university which is the population for this study.

As per given :  A national polling organization wants to estimate the percentage of all teenagers who believe social security will 'be there' for them.

Here , the population of interest : All teenagers.

Sample :  1500 teenagers

37% : sample proportion of teenagers says that they believe social security will 'be there' for them.

Hence, the correct answer is : B) All teenagers.