5. Amy implements merge sort, rms the code four times on the site machine using the same 10-million-element input array, and obtains accurately measured tim times (significant digits) of 16.01s, 15.63., 14.786, and 15.18. (1) (2 points) Why are the run times different? (b) (4 points) What is the approximate value of the hicklen constant ? (c) (4 points) What would be the run time for a 20-million-element way? 5. Amy implements merge sort, rms the code four times on the site machine using the same 10-million-element input array, and obtains accurately measured tim times (significant digits) of 16.01s, 15.63., 14.786, and 15.18. (1) (2 points) Why are the run times different? (b) (4 points) What is the approximate value of the hicklen constant ? (c) (4 points) What would be the run time for a 20-million-element way