Revenues (in $million) of a chain of ice cream stores are listed for each quarter during the previous five years.
(20.51) Using the seasonal indexes and trend line, forecast revenues for the next four quarters.
Revenues (in $million) of a chain of ice cream stores are listed for each quarter during the previous five years.
(20.50) Determine the seasonal indexes.
Revenues (in $million) of a chain of ice cream stores are listed for each quarter during the previous five years.
(20.49) Use regression analysis to determine the trend line.
Revenues (in $million) of a chain of ice cream stores are listed for each quarter during the previous five years.
(20.48) Explain why exponential smoothing is not recommended as a forecasting tool for this problem.
Revenues (in $million) of a chain of ice cream stores are listed for each quarter during the previous five years.
(20.47) Plot the time series.
