# Statistics

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Total plasma volume is important in determining the required plasma component in blood replacement theory for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that sample of 50 male firefighters are tested and that they have a plasma volume sample mean of ml/kg (milliliters of plasma per kilogram body weight). Assume that ml/kg for the distribution of blood plasma. Find the 95% confidence interval of the population mean blood plasma volume in male firefighters. Round your answer to two decimal places.
37.47 ml/kg to 39.53 ml/kg
36.87 ml/kg to 35.87 ml/kg
36.37 ml/kg to 40.63 ml/kg
38.20 ml/kg to 38.80 ml/kg
38.13 ml/kg to 38.87 ml/kg

• Statistics -

Need the mean and standard deviation values.

95% conf. interval = mean ± 1.96 SE

SE = SD/√(n-1)

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