Table 4. The percentage of participants in the BTO Ringing Scheme by permit class. The chi-square statistics computed for each permit class were greater than the critical value at P = 0.05. Classes AP and CP are for those near retirement age in permit classes A and C, respectively (data on Trainers from Spence 2007).
| |
| |
|
Permit class |
%Male |
%Female |
X2 |
X2 |
N |
Unknown |
Skew |
| |
|
A |
90 |
10 |
478 |
N/A |
711 |
0 |
M |
|
AP |
95 |
5 |
395 |
N/A |
466 |
0 |
M |
|
C |
74 |
26 |
163 |
N/A |
650 |
2 |
M |
|
CP |
87 |
13 |
70 |
N/A |
121 |
0 |
M |
|
T |
58 |
42 |
19 |
N/A |
571 |
2 |
M |
|
Total |
80 |
20 |
969 |
N/A |
2519 |
4 |
M |
|
|
|
|
|
|
|
|
|
|
Trainers |
95 |
5 |
316 |
10 |
373 |
0 |
M |
|
| |
|