You've just completed a pilot run of 10 units of a major product and found the processing time for each unit was as follows: Use Exhibit 4A5 and Exhibit 4A6 UNIT TIME SUBCK (HOURS) 816 2. 500 3 510 440 420 300 368 9 330 a. According to the pilot run, what would you estimate the leaming rate to be? Note: Do not round intermediate calculations. Round your answer to the nearest whole percent. Estimated learning rate b. Based on part (a), how much time would it take for the next 190 units, assuming no loss of learning Note: Round your answer to the nearest whole number Time taken hours