# A researcher is investigating the effectiveness of a treatment for adolescent boys who are taking medication for depression. A group of 30 boys is selected and half receive the new treatment in addition to their medication and the other half continue to take their medication without any treatment. For this study, a. Identify the population. b. Identify the sample.

### Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
Publisher: Cengage Learning
ISBN: 9781133956570

### Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
Publisher: Cengage Learning
ISBN: 9781133956570

#### Solutions

Chapter
Section
Chapter 1, Problem 1P
Textbook Problem

## A researcher is investigating the effectiveness of a treatment for adolescent boys who are taking medication for depression. A group of 30 boys is selected and half receive the new treatment in addition to their medication and the other half continue to take their medication without any treatment. For this study, a. Identify the population. b. Identify the sample.

Expert Solution

(a)

To determine

To identify: The population of the study.

The population is all adolescent boys who are taking medication for depression.

### Explanation of Solution

Given info:

A researcher is investigating the effectiveness of a treatment for adolescent boys who are taking medication for depression.

Justification:

Population:

A population is the entire set of the individuals of interest for a particular research question.

The study states that the population might be the adolescent boys who are taking medication for depression.

Expert Solution

(b)

To determine

To Find: The sample for the study.

The sample is thirty adolescent boys who are taking medication for depression.

### Explanation of Solution

Given info:

A researcher is investigates a group of 30 boys and half receive the new treatment in addition to their medication and the other half continue to take their medication without any treatment.

Justification:

Sample:

A sample is a set of individuals selected from a population, usually intended to represent the population in a research study.

The study states that the researcher randomly selects the group of thirty boys. Out of those thirty boys, half of them receive the new treatment in addition to their medication and the other half of them continue to take their medication without any treatment.

Hence, the sample is thirty adolescent boys who are taking medication for depression.

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