A plastics manufacturing performed a quarterly time series analysis for demands over the last ﬁve
Years (periods 1 through 20). The analysis resulted in the following trend equation and seasonal
Indexes:
= 920.0 + 22.6 t
Based on the seasonal indexes, which quarter is expect to have 25% less demand than predicted
By the trend line?

Question

A plastics manufacturing performed a quarterly time series analysis for demands over the last ﬁve
Years (periods 1 through 20). The analysis resulted in the following trend equation and seasonal
Indexes: 
= 920.0 + 22.6 t 
Based on the seasonal indexes, which quarter is expect to have 25% less demand than predicted
By the trend line?

Quizplus · Accepted Answer

1

A Plastics Manufacturing Performed a Quarterly Time Series Analysis for Demands