# Question

Find a confidence interval for assuming that each sample is from a normal population.

a. x-bar = 24, s = 3, n = 7, 90 percent confidence

b. x-bar = 42, s = 6, n = 18, 99 percent confidence

c. x-bar = 119, s = 14, n = 28, 95 percent confidence

a. x-bar = 24, s = 3, n = 7, 90 percent confidence

b. x-bar = 42, s = 6, n = 18, 99 percent confidence

c. x-bar = 119, s = 14, n = 28, 95 percent confidence

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