A pharmaceutical company produces a sinus medicine. Monthly sales (in thousands of doses) for the…


A pharmaceutical guild produces a sinus medicine. Monthly sales (in thousands of doses) for the gone-by three years are shown in the board on the direct page.

a. Develop a retirement example that allows for curve and seasonal components. Obtain the Excel output for this example.

b. Calculate a two-period moving-average forecast.

c. Compare the moderation irresponsible deviations for these approaches.

d. Use one of these examples to forecast sales for each month of year 3.