Question 1 A 1992 article in the Journal ofthe American Medical Association A Cr

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Question 1 A 1992 article in the Journal ofthe American Medical Association A Critical Appraisal of g8 Degrees the Upper Limit ofthe Non nal Boa , temperature and Other e ac o Car Reinhold August und N reported body temperature, gender, and heart rate for a number of subjects. The temperatures for 25 female subjects follow 97.4 97.2 97.4 97.6 97.8 97.9 98.0 98.0 98.2 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 H0 -986 versus H1:#986, using -0.05. Round your answers to three decimal places (eg, 98.765). (a) Calculate the sample mean and standard deviation. (b) Determine the test statistic to

Explanation / Answer

a)
sample mean = 98.256
std.dev.= 0.5017

b)
t = (x - mean) / (s/sqrt(n))
= ( 98.256 - 98.6) / ( 0.5017/sqrt(25))
= -3.4283

p value is calculated using t = -3.2483 , df = 24
p value = .0022
we reject the null hypotheis

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