MATH 225N:Week 1 Evidence,
Claims, and types Questions and
Answers
, MATH 225N:Week 1 Evidence,
Claims, and 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 person has.
An experimental study should be used where the consumption of coffee is the
experimental factor.
An experimental study should be used where the number of hours of sleep is the
experimental factor.
2. A researcher is interested in the effects of watching videos just before bed
on the quality of sleep. Which of the following claims would be appropriate
for this situation? Select only one answer choice.
Select the correct answer below:
Watching videos just before bed reduces quality of sleep.
More than 60% of people watch videos just before going to bed.
Claims, and types Questions and
Answers
, MATH 225N:Week 1 Evidence,
Claims, and 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 person has.
An experimental study should be used where the consumption of coffee is the
experimental factor.
An experimental study should be used where the number of hours of sleep is the
experimental factor.
2. A researcher is interested in the effects of watching videos just before bed
on the quality of sleep. Which of the following claims would be appropriate
for this situation? Select only one answer choice.
Select the correct answer below:
Watching videos just before bed reduces quality of sleep.
More than 60% of people watch videos just before going to bed.
