Average of all forecast errors is 0 a company wants to use a regression analysis to forecasts the demand for the next quarter.
It can influence it to be better
The answer to the blank space of the statement is project manager.
A project manager is a person whose <u>main responsibility is to manage the planning, procurement, and execution of a project from start to finish</u>. This also includes determining what milestones can be managed in-house (by people inside the company) or should be done by subcontractors or consultants.