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MATH 225N WEEK 1 ASSIGNMENT EVIDENCE CLAIMS,TYPES QUESTIONS AND ANSWERS
MATH 225N WEEK 1 ASSIGNMENT EVIDENCE 
CLAIMS,TYPES QUESTIONS AND ANSWERS 
 
1. A study is planned to research the effects of drinking coffee on hours of 
sleep. Would an experimental or observational study design be more 
appropriate? 
Select the correct answer below: 
An observational study should be used because it is not possible to control whether or 
not a person drinks coffee. 
An observational study should be used because it is not possible to control the number 
of hours of sleep a perso...
- Exam (elaborations)
- • 14 pages •
MATH 225N WEEK 1 ASSIGNMENT EVIDENCE 
CLAIMS,TYPES QUESTIONS AND ANSWERS 
 
1. A study is planned to research the effects of drinking coffee on hours of 
sleep. Would an experimental or observational study design be more 
appropriate? 
Select the correct answer below: 
An observational study should be used because it is not possible to control whether or 
not a person drinks coffee. 
An observational study should be used because it is not possible to control the number 
of hours of sleep a perso...