The index of exposure to radioactive waste, x, and the cancer mortality rates, y, (deaths per 100,000) were recorded for nine different Oregon counties. Use the regression analysis provided below to find a 99% confidence interval for the slope. Right-click the link to use thist-table.

The regression equation is= 114.7156 + 9.231456x

R-sq = 85.8%

PredictorCoefficientStandard Errort-StatP-ValueIntercept114.71468.04566314.25807.0000Index of Exposure9.2314561.4187876.506584.00003

(3.97, 14.49)

(4.27, 14.20)

(7.81, 10.65)

(85.56, 142.87)

(4.47, 14.00)