A sample of size n = 45 has sample mean x? = 56.9 and sample standard deviation s = 9.4. Construct a 99% confidence interval for the population mean ?. Round the answers to one decimal place. A 99% confidence interval for the population mean is ____ < ? < ____.
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Sample size (n) = 45 Sample mean (x̄) = 56.9 Sample standard deviation (s) = 9.4 Confidence level = 99% Show more…
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