a) Let independent variable x represent years since 1950. Determine quadratic regression model for per capita cigarette consumption.
b) If per capita cigarette consumption continues to follow trend exhibited, when (to the nearest year) will per capita consumption drop to 500 cigarettes?
(C) What does your model forecast for per capita cigarette consumption in year 2000? Use Internet or library to compare your forecasted results with actual results.
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TABLE Cigarette Consumption
|
|
Production
|
Per Capita
|
|
Year
|
(Billions)
|
Annual Consumption
|
|
1950
|
370
|
3,550
|
|
1955
|
396
|
3,600
|
|
1960
|
484
|
4,170
|
|
1965
|
529
|
4,260
|
|
1970
|
537
|
3,990
|
|
1975
|
607
|
4,120
|
|
1980
|
632
|
3,850
|
|
1985
|
594
|
3,370
|
|
1990
|
525
|
2,830
|
|
1995
|
487
|
2,520
|