Two microprocessors are compared on a sample of 6 benchmark codes to determine whether there is a difference in speed the times (in seconds) used by each processor on each code are as follows: Code 1 2 3 4 5 6 Processor A 24.9 18.0 24.6 18.6 22.2 22.6 Processor B 29.0 15.4 23.0 24.7 24.4 26.1 Send data to Excel Part: 0 / 20 of 2 Parts Complete Part 1 of 2 (a) Find a 99.5% confidence interval for the difference between the mean speeds. Let d represent the speed of the processor A minus the speed of processor B. Use the TI-84 calculator. Round the answers to two decimal places. A 99.5% confidence interval for the difference between the mean speeds is