Listed below are pulse rates (beats per minute) from samples of adult males and females. Does there appear to be a difference? Find the coefficient of variation for each of the two samples; then compare the variation.
Male
9090
6868
6161
6868
6868
5252
6464
5454
8484
7171
6060
6060
100100
5555
6262
Female
6868
8383
8181
7070
7373
8383
8888
8686
9090
8888
9292
7070
8888
8181
8080