A recent article inBloombergBusinessweeklisted the "Best Small Companies." We are interested in the current results of the companies' sales and earnings. A random sample of 12 companies was selected and the sales and earnings, in millions of dollars, are reported below.

Company Sales ($ Millions) Earnings ($ Millions)

Papa Johns 92.2 5.4

Applied I 20.2 4.6

Integra 18.5 1.4

Wall Data 77.9 8.8

Davidson 62.7 6.8

Chico's FAS 48.9 4.2

Checkmate 19.0 2.7

Royal Grip 12.2 1.7

M-Wave 21.2 3.6

Serving N 53.0 8.8

Daig 29.4 6.4

Cobra Golf 70.9 14.0

Let sales be the independent variable and earnings be the dependent variable.(Do not round intermediate calculations. Round your answers to 3 decimal places.)

1. The coefficient of correlation is _____
2. The regression equation, with the coefficients, is y(hat) = ____ + _____x
3. For a small company with $50 million in sales, and estimate of the earnings is ____ ($ millions).