A physiological experiment was concluded to study the effect of various factors on a pulse rate. The participants took their own pulse. They then were asked to flip a coin. If their coin came up heads, they were to run in place for 1 minute. Then everyone took their own pulse again. The dataset pulse.txt contains the following variables:ID: id numbers PULSE1: first pulse rate; PULSE2: second pulse rate; RAN: 1=ran in place, 2 =did not run; SMOKES: 1=smokes regularly, 2 =does not smoke regularly; SEX: 1=male, 2=female; HEIGHT: height in inches; WEIGHT: weight in pounds. ACTIVITY: (usual level of physical acVvity) 1=light, 2=moderate, 3=vigorous