Question Fl Two whooping cough (pertussis) outbreaks were detected by the CDC in 2011. In Portland, OR, there were 18 cases of whooping cough among the 80 children who were not vaccinated in the city. In Atlanta, GA, there were 6 cases of whooping cough among the 70 children who were not vaccinated in the city. The researchers at the CDC wish to know if there is a significant difference in proportion of whooping cough cases between Portland and Atlanta? A) What is the null hypothesis? What is the research hypothesis? B) What is the appropriate test statistic? What is the critical value for the test statistic? C) What is the test statistic for this study? D) Interpret the findings. Remember to include magnitude, direction, significance, outcome measure, and groups being compared