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The relationship between population (y) and year (x) was determined to be exponential. The least-squares regression equation of the appropriately transformed data (x, log y) wasY-hat equals point five plus point zero zero four X What would be the predicted population in the year 1990 (there was no transformation on the year - that is, x=0 corresponds to the year 0)?

Respuesta :

Edufirst
Y-hat = log y = 0.5 + 0.004 x

x = 1990 => log y = 0.5 + 0.004 (1990) = 8.46

log y = 8.46 => y = 10^8.46 = 288,403,150

Answer: 288,403,150

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