SOLUTION: 34. Sleep Deprivation In a recent study, volunteers who had 8 hours of sleep were three times more likely to answer correctly on a math test than were sleep-deprived partic

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Question 66644This question is from textbook Elementary Statistics
: 34. Sleep Deprivation
In a recent study, volunteers who had 8 hours of sleep were three times more likely to answer correctly on a math test than were sleep-deprived participants.
(a) Identify the sample used in the study.
(b) What is the sample's population?
(c) Which part of the study represents the descriptive branch of statitics?
(d) Make an inference based on the results of the study? This question is from textbook Elementary Statistics

Answer by stanbon(75887) About Me  (Show Source):
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34. Sleep Deprivation
In a recent study, volunteers who had 8 hours of sleep were three times more likely to answer correctly on a math test than were sleep-deprived participants.
(a) Identify the sample used in the study.
The volunteers.
(b) What is the sample's population?
People in general.
(c) Which part of the study represents the descriptive branch of statitics?
"three times more likely"
(d) Make an inference based on the results of the study?
To prepare for a math test a person should get at least 8 hours
of sleep the night before.
Cheers,
Stan H.