Solve the given problem. Show all necessary computations and solutions. Follow the hypothesis testing procedure. PROBLEM : The given table shows the scores of representative students of three sections...

Solve the given problem. Show all necessary computations and solutions. Follow the hypothesis testing procedure.

PROBLEM :
The given table shows the scores of representative students of three sections in a Science exam.
A:     84     94     90     94
B:     74     94     84     84     97
C:     94     81     90
Is there a difference in the mean Science exam scores of the students from the three sections? Use a .05 level of significance.