Question
A simple random sample of size n is drawn from a population that is normally distributed. The sample mean is 68 and the sample standard
A simple random sample of size n is drawn from a population that is normally distributed. The sample mean is 68 and the sample standard deviation is 12. Construct a 95% confidence level for the mean of the population if the sample size is 30.
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Understanding Public Opinion Polls
Authors: Jelke Bethlehem
1st Edition
1498769756, 9781498769754
