Alocal trucking company fitted a regression to relate the travel time (days) of its shipments as a function of the distance traveled (miles). the fitted regression is time = −7.126 + .0214 distance, based on a sample of 20 shipments. the estimated standard error of the slope is 0.0053. find the critical value for a right-tailed test to see if the slope is positive, using α = .05.a local trucking company fitted a regression to relate the travel time (days) of its shipments as a function of the distance traveled (miles). the fitted regression is time = −7.126 + .0214 distance, based on a sample of 20 shipments. the estimated standard error of the slope is 0.0053. find the critical value for a right-tailed test to see if the slope is positive, using α = .05.