how effective is the use of the influenza vaccine at preventing flu

how effective is the use of the influenza vaccine at preventing flu

Review the following research questions.

1.  For patients of 70 years and older, how effective is the use of the influenza vaccine at preventing flu as compared to patients who have not received the vaccine?

2.  What is the relationship between alcohol and breast cancer?

 3.  What is the difference in attitudes of male and female college students toward condoms?

Use the above 3 practice studies and address the following:

• Identify an appropriate research design. (qualitative or quanitative research study)
• Discuss the strengths and weaknesses of the design/ research question. Long term, short term ramifications of safety and overall the long term goal of the research study. 
• Provide a rationale for the design you selected. 

please use public choices, no first person writing. please use references in apa style.