Please help me solve this:

Use trend projection with regression to forecast sales for weeks 1013. What are the error measures (CFE, MSE, , MAD, and MAPE) for this forecasting procedure? How about r2 ? Obtain the trend projection with regression forecast for weeks 10 - 13. (Enter your responses rounded to two decimal places.) Obtain the error measures. (Enter your responses rounded to two decimal places.) Find the coefficient of determination (r2). The coefficient of determination r2= (Enter your response rounded to two decimal places.)