Write your complete solutions and box your answers. Regression methods were used to analyze the data from a study investigating the relationship between roadway surface temperature (x) and pavement deflection (y). Summary quantities were n = 20, Σy = 12.75, Σy = 8.86, Σ.x, = 1478, Σx = 143,215.8, and Exy = 1083.67. Find a 99% confidence interval on each of the following: (a) Slope (b)Intercept (c) mean deflection when temperature x = 85°F

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