Statistics - Confidence Interval for μ
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Find a confidence interval for μ assuming that each sample is from a normal population.
a. ¯x = 14, σ = 4, n = 5, 90 percent confidence
b. ¯x = 37, σ = 5, n = 15, 99 percent confidence
c. ¯x = 121, σ = 15, n = 25, 95 percent confidence
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(a) SE = /Ön = 4/Ö5 = 1.789
The 90% CI for the population mean is given by ...
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