A sample of size 25, drawn from a normal population, produces a mean of 12.5 and a variance of 2.4. Construct a 99% confidence interval for the population mean.
Added by Eduardo B.
Step 1
- Sample size (n) = 25 - Sample mean (\(\bar{x}\)) = 12.5 - Sample variance (s²) = 2.4 - Sample standard deviation (s) = \(\sqrt{2.4} \approx 1.549\) Show more…
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