11. Provide the sales forecast values for these months - using trend line method- if the trend line for a company ABC, the actual sales data is given by the table given below. In a tabular format, provide the sales forecast values for these months, if the trend line is given by the following functional relationship: y = 4.78 t + 150. Find the eror in terms of RMSE value. Month January February March April May June July August Sales (A) 155 160 167 168 172 172 189 189