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(1 point) A random sample of n measurements was selected from a population with unknown mean and standard deviation dr. Calculate a 90% confidence

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(1 point) A random sample of n measurements was selected from a population with unknown mean and standard deviation dr. Calculate a 90% confidence interval for u for each of the following situations: (a) n=13, 99.6, s=2.06 SHS (b) n=26, x 12.5, s=3.38 SHS (c) n=16, 77.9, s = 2.7 SHS (d) n=16, x 17.3, s=2.49 SHS

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