If neighbors wanted to have a speed bump installed on one part of the road, which statistical method would be most effective.

Group of answer choices

a. Hypothesis testing with a null hypothesis that the speed is more than the posted speed

b. Hypothesis testing with a null hypothesis that the speed is less than or equal to the posted speed

c. Use a confidence interval with the posted speed as the mean

d. Regression with speed as an independent variable

e. Regression with speed as the dependent variable