1. Considering the following project data in the table. Assuming that in the baseline schedule every activity stars at the early start time (critical path method). The actual proaress and cost are recorded at the end of 15th week. a) Give the planned value of the project.(Requirement: give the cost of every week during the project planned duration, and plot the accrued planned value) b) According to the actual progress and cost data, calculate the SV,SPI,CV,CPI, and explain the meaning of these indicators. c) According to the actual progress data, calculate the ES,SV(t),SPI(t), and explain the meaning of these indicators