Question

Researchers found a positive correlation between hours of sleep and test performance. However, when they only examined individuals who slept between 9 and 12 hours a night, there was no association. This discrepancy in interpretation of the association is an example of _________. Options: A. restriction of range B. outliers C. covariance D. non-normality

Name: researchers found a positive correlation between hours of sleep and test performance however when they only examined individuals who slept between 9 and 12 hours a night there was no associa 72125
Uploaded: 2023-09-17T22:36:47-08:00
Duration: 3 min 24 s
Channel: Ahmet Yavas
Description: researchers found a positive correlation between hours of sleep and test performance however when they only examined individuals who slept between 9 and 12 hours a night there was no associa 72125

          Researchers found a positive correlation between hours of sleep and test performance. However, when they only examined individuals who slept between 9 and 12 hours a night, there was no association. This discrepancy in interpretation of the association is an example of _________.
Options:
A. restriction of range
B. outliers
C. covariance
D. non-normality

Added by Tiffany A.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Ahmet Yavas

09/17/2023

Step 1

This means that as the number of hours of sleep increases, test performance also tends to increase. Show more…

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Researchers found a positive correlation between hours of sleep and test performance. However, when they only examined individuals who slept between 9 and 12 hours a night, there was no association. This discrepancy in interpretation of the association is an example of _________. Options: A. restriction of range B. outliers C. covariance D. non-normality