### Determine the least-squares regression equation

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##### Reference no: EM131353684

City government has collected the following data on annual sales tax collections and new car registrations:

 ANNUAL SALES TAX COLLECTIONS (IN MILLIONS) 1 1.4 1.9 2 1.8 2.1 2.3 NEW CAR REGISTRATIONS (IN THOUSANDS) 10 12 15 16 14 17 20

Determine the following:

a) The least-squares regression equation.

b) Using the results of part (a), find the estimated sales tax collections if new car registrations total 22,000.

c) The coefficients of correlation and determination.

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