Answer the following question:

Question 1: Distinguish among surveys, experiments and observational methods of primary data collections. Cite examples of each method.

Question 2: Define and give an example of each of the methods of gathering survey data. Under what circumstances should researchers choose a specific approach?

Question 3: Describe the experimental method of collecting primary data and indicate when researchers should use it.

Question 4: Describe business intelligence.

Question 5: Contrast qualitative and quantitative sales forecasting methods.

Note: Please describe comprehensively and provide step by step solution.