The following is the actual sales for Manama Company for a particular good: t Sales 1 15 2 22 3 26 4 29 5 35 The company wants to determine how accurate their forecasting model, so they asked their modeling expert to build a trend model. He found the model to forecast sales can be expressed by the following model: Et-5+2.4t Calculate the amount of error occurred by applying the model is: Hint: Use MSE (Round your answer to 2 decimal places)