A clinical psychologist is investigating the relationship between sleep and feelings of anxiety. For a sample of 15 individuals, he asks each participant to indicate how many hours they typically sleep each night and each participant also completes an anxiety assessment. The following data is obtained: Hours of sleep: M=6.0 SS=16.0 Anxiety scores: M=8.0 SS=64.0 SP = - 20.0 c. Compute the coefficient of determination. What does this value tell you?

A clinical psychologist is investigating the relationship between sleep and feelings of anxiety. For a sample of 15 individuals, he asks each participant to indicate how many hours they typically sleep each night and each participant also completes an anxiety assessment. The following data is obtained: Hours of sleep: M=6.0 SS=16.0 Anxiety scores: M=8.0 SS=64.0 SP = - 20.0 c. Compute the coefficient of determination. What does this value tell you?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 24PFA

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Question

A clinical psychologist is investigating the relationship between sleep and feelings of
anxiety. For a sample of 15 individuals, he asks each participant to indicate how many hours they
typically sleep each night and each participant also completes an anxiety assessment. The following
data is obtained:
Hours of sleep: M=6.0 SS=16.0
Anxiety scores: M=8.0 SS=64.0
SP = - 20.0

c. Compute the coefficient of determination. What does this value tell you?

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