Are drone owners in Edmonton, Canada, less concerned than people who do not own a drone about safety with drones flying over people? In a survey to gather community insight about drones, participants provided feedback on “I have safety concerns regarding drones flying over people.” Possible answers were “Strongly Agree, Somewhat Agree, Neutral, Somewhat Disagree, Strongly Disagree. ”We assume that the shape of the responses from both genders is equal and the inference will be expressed in terms of the medians. α = 5%.

a) Write the null and alternative hypothesis for a Wilcoxon rank-sum test.

b) The p-value = 0. Is the null rejected?

c) Write a statistical conclusion.