To Explain: that the given data sufficient evidence to condense that the drug was effective.
Explanation of Solution
Given:
The data show the number of additional hours of sleep gained by each subject after taking the drug
1.9, 0.8, 1.1, 0.1, -0.1, 4.4, 5.5, 1.6, 4.6, 3.4
Whether drug could increase sleep time or not that is the question for that 10 subjects were randomly selected and these subjects sleep time were measured before taking the drug and then measured again after taking the drug and after measured again after taking the drug and the difference these two times was calculated. A negative time means that the subject slept for a short time after taking the drug. After looking at these data, it is most appropriate to use the
Chapter 2 Solutions
Statistics Through Applications
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