Target's research objective is to determine how to best rearrange the layout of the departments.The specific questions they hope to answer include the following.

1. Which department(s) do the majority of customers visit when they first enter the store?
2. What is the path customers take from entrance to checkout? How does this vary by age and gender?
3. Which departments are visited the least?
4. On average, how long do customers spend in each department?

What research methodology is best utilized, and what is your rationale?