To study the effects of music on sleep quality in adults 18 years or older, 100 adults were given the Pittsburg Sleep Quality Index (PSQI) and then asked to listen to 30 min of music at bedtime for three weeks. At the end of the three weeks, subjects were given the PSQI again and the change in score was reported. (a) What type of experimental design is this? Matched paired design (b) What is the population being studied? adults 18 years or older (c) What are the experimental units? adults 18 or older (d) What is the response variable? PSQI (e) What is the explanatory variable? 30 Mins of music at bedtime (f) Name one other factor that could influence the response variable. This part will be hand graded.
To study the effects of music on sleep quality in adults 18 years or older, 100 adults were given the Pittsburg Sleep Quality Index (PSQI) and then asked to listen to 30 min of music at bedtime for three weeks. At the end of the three weeks, subjects were given the PSQI again and the change in score was reported. (a) What type of experimental design is this? Matched paired design (b) What is the population being studied? adults 18 years or older (c) What are the experimental units? adults 18 or older (d) What is the response variable? PSQI (e) What is the explanatory variable? 30 Mins of music at bedtime (f) Name one other factor that could influence the response variable. This part will be hand graded.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Transcribed Image Text:To study the effects of music on sleep quality in adults 18 years or older, 100 adults were given the
Pittsburg Sleep Quality Index (PSQI) and then asked to listen to 30 min of music at bedtime for three
weeks. At the end of the three weeks, subjects were given the PSQI again and the change in score was
reported.
(a) What type of experimental design is this? Matched paired design
(b) What is the population being studied? adults 18 years or older
(c) What are the experimental units? adults 18 or older
(d) What is the response variable? PSQI
(e) What is the explanatory variable? 30 Mins of music at bedtime
(f) Name one other factor that could influence the response variable. This part will be hand graded.
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