Chapter 14.3, Problem 1LC

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

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

Chapter
Section

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

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570
Textbook Problem

# A researcher finds a correlation of r = –0.71 between the time spent playing video games each week and grade point average for a group of high school boys. This means that playing video games causes students to get lower grades. (True or false?)

To determine
Is the statement “A correlation of -0.71 between the time spent playing video games each week and grade point average means that playing video games causes students to get lower grades” true or false.

Explanation

Given info:

A correlation of -0.71 between the time spent playing video games each week and grade point average means that playing video games causes students to get lower grades.

Justification:

Correlation is simply a measure of linear relationship between two variables. It does not necessarily indicate a cause-and-effect relationship...

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