Exercise 1.11 The following table shows results for SPEC CPU2006 benchmark program bzip2 running on an AMD Barcelona. Intr. Count x 10 Name Execution Time (seconds) Reference Time (seconds) 820 bzip2 3120 9650 1.11.1 [5] Find the CPI if the clock cycle time is 0.250 ns. 1.11.2 [5] Find the SPECratio. 1.11.3 [5] Find the increase in CPU time if the number of instructions of the benchmark is increased by 15% without affecting the CPI. 1.11.4 [5] Find the increase in CPU time if the number of instructions of the benchmark is increased by 7% and the CPI is increased by 12%, 1.11.5 [5] Find the change in the SPECratio for this change