Question: Question 4 1 pts The information of a forecasting method, in terms of actual sales and forecasted sales, is given in the table below. Actual

Question 4 1 pts The information of a forecasting

Question 4 1 pts The information of a forecasting method, in terms of actual sales and forecasted sales, is given in the table below. Actual sales 20 26 25 33 32 Forecasted sales 20 24 18 36 29 Please calculate the TS value of the forecasting method. Numbers only, keep three decimals if not exact, either round up or down is ok. Question 5 1 pts The following is the recent historical sales of Sony HDTV at a local BestBuy store. Month Jan Feb Mar April May Actual HDTV sales 81 84 77 69 94 Please calculate the parameter value of a, in the simple linear regression formula y=a+bx. Input should be an exact number

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