How do I calculate the sample mean given these variables (confidence interval, confidence level and sample size)? I have everything except (obviously) the sample mean, and I also lack the standard deviation seemingly.
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1$\begingroup$ what is the confidence interval for? what is the underlying distribution for which the confidence interval is constructed? $\endgroup$– Lost1Mar 25, 2013 at 23:10
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1 Answer
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Generally the sample mean is the midpoint of the confidence interval.
answered Mar 25, 2013 at 23:13