Linear Regression (y = mx + b)

CETA Chamber

n

Slope (m)

Intercept (b)

r²

East

140

0.981a*

0.011a*

0.96

Central

140

1.035a

−0.0105a

0.96

West

140

1.030a

−0.0141a

0.96

Pooled

420

1.004a

−0.003a

0.97

Linear Regression (y = mx)

East

0.997a

0.96

Central

1.000a

0.96

West

0.997a

0.96

Pooled

0.998a

0.97