A Plastics Manufacturing Performed a Quarterly Time Series Analysis for Demands

Multiple Choice

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 Using the trend line question and the seasonal indexes, predict demand for the third period of the next year, i.e., period 23.

A) 1439.8
B) 519.8
C) 629.0
D) 1195.2
E) 1742.2