How Much Are College Students Sleeping?
a. Americans average 6.9 hours of sleep on weeknights, according to a report released in 2011 by the National Sleep Foundation.
b. A student in a statistics class at Los Medanos College wondered if the average amount of sleep on weeknights is different for LMC students.
c. She plans to test her hypotheses at a 5% level of significance.
d. She collects data from a survey of 43 randomly selected students at LMC.
e. Respondents averaged 7.12 hours of sleep a night with a standard deviation of 1.45 hours.
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