Obtain estimates of daily relatives for the number of customers at a restaurant for the evening meal, given the following data. Number Number Day Served Day Served 10 1234567890 1 84 15 83 81 16 79 85 17 84 99 18 93 133 19 133 140 45 86 75 79 11 94 12 13 23 136 137 12 67 22222222 20 138 21 49 22 89 23 79 24 86 25 92 26 130 27 136 14 43 28 48 Click here for the Excel Data File 1's 2's XI a. Use the centered moving average method. (Hint: Use a seven-day moving average.) (Round your intermediate calculations and final answers to 4 decimal places.) 3's 4's 5's 6's 7's b. Use the SA method. (Round your intermediate calculations and final answers to 4 decimal places.) SA Index 1's 2's 3's 4's 5's 6's 7's