Question 62409
Month July 2006 August 2006 September 2006 October 2006
Profit ($ M) 104 113 122 132 
1. Which model linear or exponential best describes the pattern of NQL’s Monthly profit
Using a TI-83 to model the data the exponential is "slightly" better
than the lineanr (r=0.9998 vs r=0.9996 Pearson product)
The exponential model is y=96.22...*1.08^x
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2. Find the expected profit for Dec. 2006 using the selected model in (1) 
The model gives an expected profit of 154.75 for December.
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Cheers,
Stan H.