Wick's Ski Shop is looking to forecast ski sales on a quarterly basis based on the historical data listed in the table below:
Use the steps to develop a forecast using the decomposition method to answer the following questions:
(a)Using the CMAs, calculate the seasonal indices for Q1, Q2, Q3, and Q4.
(b)Find the equation for the trend line using deseasonalized data.
(c)Find the year 5 quarterly forecasts.

Question

Wick's Ski Shop is looking to forecast ski sales on a quarterly basis based on the historical data listed in the table below:
  Use the steps to develop a forecast using the decomposition method to answer the following questions:
(a)Using the CMAs, calculate the seasonal indices for Q1, Q2, Q3, and Q4.
(b)Find the equation for the trend line using deseasonalized data.
(c)Find the year 5 quarterly forecasts.

Quizplus · Accepted Answer

The Answer of Wick's Ski Shop is looking to forecast ski sales on a quarterly basis based on the historical data listed in the table below:
  Use the steps to develop a forecast using the decomposition method to answer the following questions:
(a)Using the CMAs, calculate the seasonal indices for Q1, Q2, Q3, and Q4.
(b)Find the equation for the trend line using deseasonalized data.
(c)Find the year 5 quarterly forecasts.

Wick's Ski Shop Is Looking to Forecast Ski Sales on a Quarterly