Find a confidence interval for assuming that each sample is from a normal population a x bar 14, 4, n 5, 90 percent confidence b x bar 37, 5, n 15, 99 percent confidence c x bar 121, 15, n 25, 95 percent confidence

Question: Find a confidence interval for assuming that each sample is from a normal population. a. x-bar = 14, = 4, n = 5, 90

Find a confidence interval for assuming that each sample is from a normal population.
a. x-bar = 14, σ = 4, n = 5, 90 percent confidence
b. x-bar = 37, σ = 5, n = 15, 99 percent confidence
c. x-bar = 121, σ = 15, n = 25, 95 percent confidence

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