I need help with this questions True or False

19)A supply approach that may lower costs, allows for better concentration of the key business competencies, and gain entry to best-in-class capabilities is outsourcing. 20)Almost 70% of the value of any given requirement is established during supplier evaluation and selection. 21)In determining outsourcing decisions, working on the outsourcing contract has less strategic importance than identifying opportunities for outsourcing. 22)The use of the latest technology frequently allows a competitive advantage from product/service differentiation but at a higher cost. 23)When a company measures the differences between service expectations and performance perceptions, it is performing a formal service quality evaluation process. 24)One of the key jobs of forecasting consists of monitoring and adjusting accordingly 25)In accounting, a large sunk cost has a large effect on the decision at hand