Problem 5-09 Assume the following daily closings for the Dow Jones Industrial Average: Day Day 1 7 2 00 3 DJIA 13,050 13,080 13,155 13,130 13,110 13,110 9 DJIA 13,230 13,150 13,260 13,305 13,240 13,350 4 10 5 11 6 12 a. Calculate a four-day moving average for Days 4 through nd your answers to two decimal places. Day Moving average 4 5 6 7 8 9 10 11 12 b. Assume that the index on Day 13 closes at 13, 340. Would this signal a buy or sell decision? This would signal a -Select- decision