From the data below for the Dow Jones Industrial Average, calculate the three-day simple moving average. Fill in the "Buy/Sell Signal" column for this trading indicator. Then, calculate the three-day exponential moving average and fill in the "Buy/ Sell Signal" column for this trading indicator. Assume that the current closing price will recelve 4/5 of the weight in the exponential moving average. Finally, fill in the "Signal Comparison" column. On which days do the signals disagree? (Leave no cells blank - be certain to enter " 0 " wherever required, Do not round intermediate calculations. Round your answers to 2 decimal places.)