An experiment is conducted to evaluate the effect of smoking on heart rate. Ten participants who smoke cigarettes are randomly selected for the experiment. Each participant serves in two conditions. In the non-smoking condition, the participant rests for an hour, after which heart rate is measured. In smoking condition, the participant rests for an hour and then smokes two cigarettes, after which heart rate is measured. Do NOT assume a normal distribution:, and use =0.05 to answer the questions below: Participant Heart beats per minute No Smoking Heart beats per minute Smoking 1 72 76 2 80 84 3 68 75 4 74 73 5 80 85 6 85 88 7 86 84 8 78 80 9 68 72 10 67 70