Part 2 A researcher wishes to test the effectiveness of a flu vaccination. 150 people are vaccinated, 180 people are vaccinated with a placebo, and 100 people are not vaccinated. The number in each group who later caught the flu was recorded. The results are shown below. Answer the questions below based on this data. Vaccination Type Status Vaccinated Placebo Control Caught the Flu 19 21 Did not catch 142 the flu 161 79 Total 150 180 100 a. QUESTION 1 How many people were in the study? For the following questions, show your work for full credit. b. QUESTION 2 What percentage of people who were vaccinated later caught the flu? Calculation: Answer: c. QUESTION 3 What percentage of people who were vaccinated did not catch the flu? Calculation: Answer: d. QUESTION 4 What percentage of all people in the study caught the flu? Calculation