| Price | All | Definitely Sure | ||
|---|---|---|---|---|
| Yes/Total | Percent | Yes/Total | Percent | |
| $1 | 32/38 | 84% | 23/38 | 61% |
| $2 | 35/47 | 74% | 26/47 | 55% |
| $3 | 33/44 | 75% | 22/44 | 50% |
| $5 | 28/46 | 61% | 10/46 | 22% |
| $7 | 13/35 | 37% | 7/35 | 20% |
| $9 | 3/9 | 33% | 1/9 | 11% |
| $12 | 1/6 | 17% | 1/6 | 17% |
| Overall | 145/225 | 64% | 90/225 | 40% |
| Turnbull mean willingness to pay | $5.46 | $2.76 | ||
| 95% confidence interval | ($4.28, $6.65) | ($2.13, $3.38) | ||