I'm having trouble calculating number 5. I think it is unpaired data but don't know how to do the rest. Can someone please help me with the rest and explain to me step by step. Thank you very much

Question 5 [12 Marks] It is believed that regular physical exercise leads to a lower resting pulse rate. Following are data for n = 20 individuals on resting pulse rate and whether the individual regularly exercises or not. Assume pulse rates are normally distributed. Consider the difference between the resting pulse rates of the two groups (regular exercise versus no regular exercise). a) Is this a paired or unpaired situation? b) Calculate the summary statistics relevant to this problem. c) Use a parametric test to determine whether there is any difference between the pulse rates of the two groups. State clearly the null and alternative hypotheses and show all steps in the hypothesis test. Present calculations by hand and Excel output to check your answer. d) Use a nonparametric test to determine whether there is any difference between the pulse rates of the two groups. State clearly the null and alternative hypotheses and show all steps in the hypothesis test. Page 3 of 4 STAIOlO Statistical Methods for Science e) Which of the two tests is most appropriate here