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.
The two are not related whatsoever. An action plan are mainly for employees to enhance their performance and work habits while working on a project. Action plans are usually written by direct supervisors. A project plan is a formal document that will guide the project through its execution and control.