Show transcribed image text Part B on a roadway segment. The Question 1: A traffic engineer takes 70 measure sample mean is 40 mph. The population distribution of speeds on the freeway normally distributed with a standard deviation of 10 mph Determine the 90 % confi interval for speed nents of speed dence
Part B on a roadway segment. The Question 1: A traffic engineer takes 70 measure sample mean is 40 mph. The population distribution of speeds on the freeway normally distributed with a standard deviation of 10 mph Determine the 90 % confi interval for speed nents of speed dence
