Question: (a) Using Linear trend approach, forecast sales for the next five years. (b) Prepare control chart for the forecast errors for 9 years using 2s

(a) Using Linear trend approach, forecast sales for the next five

(a) Using Linear trend approach, forecast sales for the next five years. (b) Prepare control chart for the forecast errors for 9 years using 2s limits. You need to calculate MSE first to find the standard deviation s and UCL and LCL. (c) The actual sales data for the next five years is provided in the below. Is this forecast (obtained in (a)) performing adequately? Explain. (Hint. Need to check the amount of error within 2 s limits.)

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