Question

2. Shown here are Caterpillar's annual global sales and revenue streams for the years 2004 through 2014. By observing the data graphically and analyzing the data statistically using techniques and concepts from this chapter, share your insights and conclusions about Caterpillar's annual global sales and revenue streams over this period of time.

YEAR	SALES AND REVENUE STREAMS ($ BILLIONS)
2004	30.31
2005	36.34
2006	41.52
2007	44.96
2008	51.32
2009	32.40
2010	42.59
2011	60.14
2012	65.88
2013	55.66
2014	55.18

Run the analyses and answer the questions.

Answer 1

The best way to project the data in the form of graphically and analyzing data statistically is time series trend model

Forecast vs Actual:

Forecast is the average sales and revenue from year 2004 to 2014. Actuals are the real sales numbers and comparison of forecast and actuals and differences are projected in the first graph.

Second graph is used to predict the sales for the future year. The graph is showing the least square regression equation on the chart. which will help to predict the numbers

Formula reference:

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