Confidence intervals-population means

Reference no: EM13104354

Construct a 95% confidence interval to estimate the population mean with a sample mean = 110 and ? = 30 for the following sample sizes:

a) n = 30
b) n = 45

Please write confidence interval in parentheses with the lower confidence limit first, followed by the upper limit, separated by a comma.

Reference no: EM13104354

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