Consider the following research questions/study scenarios. For each study, discuss the most appropriate methods for describing the data (graphically and numerically) and addressing the research questions? Be sure to provide a justification of the statistical method. When a statistical test is needed, provide appropriate null and research hypotheses. A. To evaluate the effectiveness of a smoking cessation program, subjects expressing a desire to quit smoking were enrolled in a modified counseling program. Continue levels will be measured prior to enrollment and 6 weeks after completion of the program. Does the modified counseling program reduce cotinine levels? B. Human Resources records of a large corporation were investigated to determine the costs of flu-like illnesses on an employed population involved in different working environments. Employees were categorized by working environment: enclosed office, cubicle, open-space, or mobile. It is of interest to determine whether the working environment is related to sick leave . Sick leave is a continuous variable but does not arise from a symmetric distribution