The file bodytemp contains normal body temperature readings (degrees Fahrenheit) and heart rates (beats per minute) of 65 males (coded by 1) and 65 females (coded by 2) from Shoemaker (1996).
a. Using normal theory, form a 95% confidence interval for the difference of mean body temperatures between males and females. Is the use of the normal approximation reasonable?
b. Using normal theory, form a 95% confidence interval for the difference of mean heart rates between males and females. Is the use of the normal approximation reasonable?
c. Use both parametric and nonparametric tests to compare the body temperatures and heart rates. What do you conclude?
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