1. A manufacturing project has a schedule performance index (SPI) of 0.89 and a cost performance index (CPI) of 0.91 . Generally, what is the best explanation for why this occurred? A. The scope was changed. B. A supplier went out of business and a new one needed to be found. C. Additional equipment needed to be purchased. D. A critical path activity took longer and needed more labor hours to complete. 2- Which of the following represents the estimated value of the work actually accomplished? A. Earned value (EV) B. Planned value (PV) C. Actual cost (AC', D. Cost variance (CV) 3- Quality is: A. Meeting and exceeding the customer's expectations. B. Adding extras to make the customer happy. C. The degree to which the inherent characteristics fulfill requirements. D. Conformance to management's objectives. 4- Project scope is: A. All the work that must be done in order to deliver a product according to the specified features and functions, only. B. The features and functions that are to be included in a product or service. C. A narrative description of work to be performed under contract. D. a and b E. all of the above