Table :
TABLE 5.1
Length (in Minutes) of 60 Visits to a Statistics Help Room
10
14
15
16
18
20
20
20
23
25
28
30
30
30
30
30
31
33
35
35
46
48
50
50
50
50
51
54
55
55
60
60
60
60
60
60
60
65
65
65
75
77
80
80
84
85
88
98
100
100
105
105
105
115
120
135
135
136
157
210