(SHOW YOUR COMPLETE WORK) The actual demand data for a product over the past six weeks are shown below: a. Plot the weekly demand data using software (e.g., Excel) OR on a sheet of graph paper. [4 points] b. Use TREND PROJECTIONS method to determine the equation of the trend line estimating the linear relationship between time (in weeks) and demand (in units sold). [21 points] c. Use the equation of the trend line to predict demand for THIS WEEK. [2 points] (Hint: 'Six weeks ago' will have a value of ' 1 ' in the equation of the trend line, and by the same logic 'One week ago' will have a value of ' 6 ' in the equation of the trend line.) Use the appropriate label/unit of measurement in your answers. Leave the numbers in decimals and go up to 5 decimal places for higher accuracy