(6)
In May 2002, the AP Statistics exam was administered to a total of 48,790 students. The grade distributions
for these students were as follows:
Score:
Percent:
5
11.1
4
21.6
3
23.9
2
19.2
1
24.2
50 LSHS students taking the AP Statistics exam had the following distribution of grades:
Score:
Students:
4
3
2
1
16
21
11
2
0
Is the distribution of scores for LSHS students significantly different from the national distribution of
scores? Assume all the conditions are met.