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. For both males and females, make scatterplots of heart rate versus body temperature. Comment on the relationship or lack thereof.
b. Quantify the strengths of the relationships by calculating Pearson and rank correlation coefficients.
c. Does the relationship for males appear to be the same as that for females? Examine this question graphically, by making a scatterplot showing both females and males and identifying females and males by different plotting symbols.
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