Siti conducted an investigation by randomly assigning each subject from a randomly selected sample of 50 participants, e
Posted: Wed Dec 08, 2021 5:25 am
Siti conducted an investigation by randomly assigning each
subject from a randomly selected sample of 50 participants, either
to watch Netflix for 1 hour 4 times a week or to listen to Symphony
924 FM for 1 hour 4 times a week. After 6 months, the changes in
the subjects' blood pressure readings over the same period were
recorded. The changes were compared for the two groups. Which of
the following is true?
MCQ
a) This is a randomized experiment because a random sample of
participants was used.
b) This is an observational study because the two groups were
compared at the end of the study.
c) This is a randomized experiment because blood pressure was
measured at the beginning and end of the study.
d) This is a randomized experiment because the participants were
randomly assigned to either activity
subject from a randomly selected sample of 50 participants, either
to watch Netflix for 1 hour 4 times a week or to listen to Symphony
924 FM for 1 hour 4 times a week. After 6 months, the changes in
the subjects' blood pressure readings over the same period were
recorded. The changes were compared for the two groups. Which of
the following is true?
MCQ
a) This is a randomized experiment because a random sample of
participants was used.
b) This is an observational study because the two groups were
compared at the end of the study.
c) This is a randomized experiment because blood pressure was
measured at the beginning and end of the study.
d) This is a randomized experiment because the participants were
randomly assigned to either activity