Confidence interval for the population mean

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Reference no: EM132339438

A random sample of 90 observations produced a mean of x = 25.9 and a standard deviation of s = 2.7. Find an approximate 95% confidence interval for the population mean, μ.

A. 29.8 ± .52

B. 25.1 ± .69

C. 26.4 ± .64

D. 25.9 ± .56

Reference no: EM132339438

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