Question: how to solve these question step by step and make it accurate 2. Nour is the production manager at a company that manufactures water heaters.
how to solve these question step by step and make it accurate

2. Nour is the production manager at a company that manufactures water heaters. The company's sales history is shown in the table below. Use exponential smoothing with trend adjustment to forecast demand for month 4. The initial forecast for month I was 120 units; the initial estimate of trend was 10. The smoothing constants are a = 0.2 and B = 0.4. Month Actual 140 2 160 3 190
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