3. (SHOW YOUR COMPLETE WORK) A manager at a superstore has been monitoring the demand for a product. The actual demand data during the last five months are shown below: MONTH Five months ago Four months ago Three months ago Two months ago One month ago ACTUAL DEMAND (number of units sold) 213 204 199 190 185 THIS MONTH ACTUAL DEMAND NOT KNOWN Use trend-adjusted exponential smoothing to obtain the demand forecast for THIS MONTH. Use the following: Exponentially smoothed forecast five months ago = 219 units Exponentially smoothed trend estimate five months ago = -7 units The smoothing constants: a = 0.4, = 0.5. [32 points] Use the appropriate label/unit of measurement in your answer. Leave the numbers in decimals and go up to 5 decimal places for higher accuracy.