Question: Forecasted and actual sales are shown below. Forecasted and actual sales are shown below Week Forecast Actuat 1 2 3 4 840 840 400 340

Forecasted and actual sales are shown below. 
Forecasted and actual sales are shown below Week Forecast Actuat 1 2 3 4 840 840 400 340 882 958 420 309 Round your answer to two decimal places. Calculate the mean squared error (MSE).
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