Determine whether the scenario is about population proportion or population mean; b) Determine whether the test statistic is z or t; c) If the test statistic is t, determine whether the two samples are independent or the two samples are matched; d) Write the null hypothesis and the alternative hypothesis Here are the scenarios: 1) A researcher wants to know whether there is a difference in Statistics exam failure rates between rural and suburban students. She randomly selects 107 rural students and 143 suburban students who took the exam. Thirty rural students failed to pass their exam, while 45 suburban students failed the exam. Use 0.05 significance level to test the claim that there is no difference on the failure rates between rural and suburban students