Question
The Research Center interviewed a random sample of 1,546 adult Anericans to determine the average time...
The
Research Center interviewed a random sample of 1,546 adult
Anericans to determine the average time they spent sleeping per
night. The sample mean was found to be 7.2 hours of sleep, with a
sample standard deviation of 1.4 hours. Construct a 95% confidence
interval for the true mean. Interpret for confidence interval in
words.
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