Solve using EXCEL formula.

15 Problem 3-9 (Algo) 10 points a. Obtain the linear trend equation for the following data on new checking accounts at Fair Savings Bank and use it to predict expected new checking accounts for periods 16 through 19. (Round your intermediate calculations and final answers to 2 decimal places.) - Rook Period New Accounts Period New Accounts 1 zea 6 231 2 215 7 247 3 211 8 8 25e 4 9 258 5 225 18 267 Period New Accounts 11 282 12 275 13 285 14 288 15 319 229 Print Reference - b.Use trend-adjusted smoothing with a = 2 and B = 1 to smooth the new account data in part a What is the forecast for period 16? Compute the initial trend estimate (Tt) for Perlod 5 as follows: (Period 4 data - Perlod 1 data) /3. Then compute the initial trend- adjusted forecast (TAFt) for Period 5 as follows: Period 4 data + Initial trend estimate for Period 5. Then compute all remaining values (including the Se value for Period 5) using the textbook formulas or Excel template. (Round the "Trend"values (Tt) to 3 decimal places and all other intermediate forecast values (TAFt and St) to 2 decimal places. Round your final answer to 2 decimal places.) Forecast for period 16 95.70