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Mathematics, 07.08.2021 03:40 lilroach4
When the level of hemoglobin in the blood is too low, the person is anemic. Unusually high levels of hemoglobin are undesirable as well and can be associated with dehydration. A study by the Harvard Medical School Cardiogenomics Group recorded the hemoglobin levels, in grams per deciliter (g/dL) of blood, in patients undergoing cardiac surgery. A random sample of 20 male cardiac patients yielded a mean of 12.35 g/dL and a standard deviation of 2.8 g/dL.
Required:
At the a = 0.05 significance level, test whether the population mean hemoglobin level for males undergoing cardiac surgery differs from 13.8 g/dL.
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When the level of hemoglobin in the blood is too low, the person is anemic. Unusually high levels of...
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