1. Do you reject or fail to reject the null hypothesis? 2. Did the health education campaign reduce regular vaping among university students?

Research Scenario 2: Chi-Square Goodness-of-Fit Test A university conducted a survey of freshmen (first-year students) to collect demographic and health information to inform intervention efforts headed by the campus health clinic. The survey revealed that a substantial proportion of students reported unhealthy and risky behaviors. In response to a question on vaping habits, 45% of students reported never vaping in the past year, 25% reported occasional vaping, and 30% reported regular vaping. The university launched a health education campaign that included a vaping cessation program. To evaluate impact of the program, the university surveyed the same students again as sophomores (second-year students). The survey was completed by 500 students and results for the vaping question are shown below. aepee Never vaping | Occasional Regular vaping vaping # students Based on the data, is there evidence of a decrease in vaping following the health education campaign? Assume the sample size is adequate to run the chi-square goodness-of-fit test at a 5% level of significance