A 1992 article in the Journal of the American Medical Association ("A Critical Appraisal of 98.6 Degrees F, the Upper Limit of the Norm Body temperature, and Other Legacies of Carl Reinhold August Wundrlich") reported body temperature, gender, and heart rate for number of subjects. The temperatures for 25 female subjects follow: 97.8 97.2 97.4 97.6 97.8 97.9 98.0 98.0 98.0 98.1 98.2 98.3 98.3 98.4 98.4 98.4 98.5 98.6 98.6 98.7 98.8 98.8 98.9 98.9 99.0 Test the hypothesis Ho: μ = 98.6 versus H₁:μ 98.6, using a = 0.05. Round your answers to three decimal places (e.g. 98.765). (a) Calculate the sample mean and standard deviation. X = i S= (b) Determine the test statistic to- (c) Draw conclusion. Ho.

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