An Atlanta government planner believes that the average travel time to work for all workers in Ontario is 30 minutes. A study based on random sample of 15 workers finds that the average travel time is X-bar = 32.8 minutes.
State the null and alternative hypotheses for testing whether the true mean is different from 30 minutes.
Any idea how to apply that to a formula?
State the null and alternative hypotheses for testing whether the true mean is different from 30 minutes.
Any idea how to apply that to a formula?