It means the FOB price, or basically the price without shipping can run from $0.04 to $0.07. The 3 cent spread may have to do with quantity, options, whatever. When you see a listing like that FOB Price means plus shipping. As far as the 3 cent variation, you need to contact them.
A project manager is a professional in the field of project management. Project managers can have the responsibility of the planning, execution, and closing of any project, typically relating to construction industry, engineering, architecture, computing, and telecommunications.
Develop a Project Plan. A project plan takes into account the approach the team will take and helps the team and stakeholders document decisions made regarding the objective, scope, schedule, resources, and deliverables. It is important to include usability activities in your project plan, so you can build in the time and resources to carry out those activities.