Question: Consider the following time series data. Using the average of all the historical data as a forecast for the next period, compute the following measures

Consider the following time series data. Using the average of all the historical data as a forecast for the next period, compute the following measures of forecast accuracy. (Round your answers to two decimal places.) (a) mean absolute error MAE= (b) mean squared error MSE= (c) mean absolute percentage error MAPE=% (d) What is the forecast for week 7
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