1- Nelson Industries manufactures a part for a type of aircraft
engine that is becoming obsolete....
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1- Nelson Industries manufactures a part for a type of aircraftengine that is becoming obsolete. The sales history for the last 10years is as follows:
year   sales
Dec-98 945
Dec-99 875
Dec-00 760
Dec-01 690
Dec-02 545
Dec-03 420
Dec-04 305
Dec-05 285
Dec-06 250
Dec-07 210
Estimate the regression model for a linear time trend ofsales.
What is the root-mean-squared error of the linear regressionestimates for these 10 years?
Using this model, estimate sales for year 11.
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1 Nelson Industries manufactures a part for a type of aircraftengine that is becoming obsolete The sales history for the last 10years is as followsyear salesDec98 945Dec99 875Dec00
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