The Salem Board of Education wants to evaluate the efficiency of the town’s four elementary schools. The three outputs of the schools are  ■ output 1= average reading score ■ output 2= average...

The Salem Board of Education wants to evaluate the efficiency of the town’s four elementary schools. The three outputs of the schools are

■ output 1= average reading score


■ output 2= average mathematics score

■ output 3= average self-esteem score The three inputs to the schools are


■ input 1= average educational level of mothers (defined by highest grade completed: 12= high school graduate; 16= college graduate, and so on)

■ input 2= number of parent visits to school (per child)


■ input 3 =teacher-to-student ratio The relevant information for the four schools is given in the file P04_41.xlsx. Determine which (if any) schools are inefficient.