The U.S. Department of Commerce publishes census information on manufacturing. Included in these figures are monthly shipment data for the paperboard container and box industry shown on the next page for 6 years.

The shipment figures are given in millions of dollars. Use the data to analyze the effects of seasonality, trend, and cycle. Develop the trend model with a linear modelonly.

Transcribed Image Text:

Shipments Shipments January (year 1) January (year 4) 7 September October 5 December Month Shipments January (year 2) January (year 5) ril 7 December December Shipment:s January (year 3) January (year 6) 5 4 5 September October November October