Appendix 3
| Characteristics | Lake Ontario | Lake Erie | Lake St. Clair | Lake Huron | Lake Superior | St. Lawrence River | Great Lakes System |
|---|---|---|---|---|---|---|---|
| Sample Size | 470 | 122 | 34 | 518 | 157 | 111 | 1,302 |
| Days of effort | 7.90% | 9.60% | 28.10% | 7.40% | 10.00% | 11.90% | 4.40% |
| Total Fish Caught | 10.90% | 15.70% | 39.70% | 14.90% | 15.30% | 23.30% | 7.70% |
| Total Fish Kept | 12.80% | 18.40% | 40.00% | 24.10% | 17.40% | 40.30% | 13.30% |
| Total investments | 18.00% | 33.10% | 79.90% | 33.30% | 43.20% | 76.60% | 23.30% |
| Total attributable investments | 18.70% | 29.40% | 55.90% | 31.80% | 31.90% | 40.00% | 16.50% |
| Direct expenditures | 8.90% | 15.40% | 46.20% | 7.50% | 13.20% | 16.20% | 4.50% |
| Willingness to Pay | 12.70% | 16.30% | 30.90% | 13.90% | 13.90% | 19.60% | 7.80% |
1 The coefficient of variation of the mean is used as a crude measure of reliability because it is not possible to calculate exact variability in the data. It is calculated as the standard error of the mean divided by the mean multiplied by 100.
The table below can be used as a guide to the use of estimates based on the coefficient of variation.
| less than 16.5% | estimates can be used without condition |
| greater than 16.5% and less than 33.5% | estimates should be used with caution |
| greater than 33.5% | estimates should be used with EXTREME condition |
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