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A study of the effects of television measured how many hours of television each of 125 grade school children watched per week during a school year and their reading scores. The study found that children who watch more television tend to have lower reading scores than children who watch fewer hours of television. The study report says that "Hours of television watched explained 9% of the observed variability in the reading scores of the 125 subjects." The correlation between hours of TV and reading score must be a. r = 0.09. X b. r=-0.09. c. r = 0.3. d. r = -0.3. e. Cannot be determined from the information given.

A study of the effects of television measured how many hours of television each of 125 grade school children watched per week during a school year and their reading scores. The study found that children who watch more television tend to have lower reading scores than children who watch fewer hours of television. The study report says that "Hours of television watched explained 9% of the observed variability in the reading scores of the 125 subjects." The correlation between hours of TV and reading score must be a. r = 0.09. X b. r=-0.09. c. r = 0.3. d. r = -0.3. e. Cannot be determined from the information given.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A study of the effects of television measured how many hours of television each of 125 grade school children watched per week during a school year and their reading scores. The study found that children who watch more television tend to have lower reading scores than children who watch fewer hours of television. The study report says that "Hours of television watched explained 9% of the observed variability in the reading scores of the 125 subjects." The correlation between hours of TV and reading score must be a. r = 0.09. X b. r = -0.09. c.r = 0.3. d. r = -0.3. e. Cannot be determined from the information given.
Transcribed Image Text:A study of the effects of television measured how many hours of television each of 125 grade school children watched per week during a school year and their reading scores. The study found that children who watch more television tend to have lower reading scores than children who watch fewer hours of television. The study report says that "Hours of television watched explained 9% of the observed variability in the reading scores of the 125 subjects." The correlation between hours of TV and reading score must be a. r = 0.09. X b. r = -0.09. c.r = 0.3. d. r = -0.3. e. Cannot be determined from the information given.
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