A two-car dealership is suffering from a significant decline in the number of car sales.

Two approaches to sales are being studied by researchers. His 12 salesmen were

randomly allocated to two classes. They then train one group to use the approach of "hard sell" and the other to use the approach of "soft sell" to decide which method is more effective. Based on the above scenarios answer the following questions.

a. Is this a descriptive, analytical or exploratory study, give reason to support your answer?

b. Develop a conceptual framework of the above scenario.

c. Is it a correlational study or casual, explain?

d. Under what time horizon the study is set in Longitudinal or cross sectional.

e. Explain the unit of analysis and give reasoning to support your answers