This is a Biostatistics problem

. Researchers are trying to see if the English AP scores from four different Massachusetts private schools are different. From each school, a random sample of students in the past year was taken and compared. Here are the results from the samples: Results School n Mean StDev BB&N 23 4.3 0.4 Roxbury Latin 25 3.9 0.6 Winsor 26 4.2 0.3 Belmont Hill 29 3.1 0.3 Is there any significant difference between these schools' AP English scores? (Assume that the populations are normally distributed) HYPOTHESES . Ho: = HBB&N URL = HWinsor = HRelHill The mean AP English Test scores in BB&N, Roxbury Latin, Winsor, and Belmont Hill are all the same. . HA: The mean AP English Test scores in BB&N, Roxbury Latin, Winsor, and Belmont Hill are not all the same