user: Question: Which average purse was earned by erika wicoff and has a winner's share greater than $9750?
Columns: ['Year', 'Champion', 'Country', 'Score', 'Purse ($)', "Winner's share ($)"]
Types: ['text', 'text', 'text', 'text', 'real', 'real']
Sample row: ['2007', 'Taylor Leon', 'United States', '203 (−13)', 80000.0, 11200.0]
SQL:

assistant: SELECT AVG("Purse ($)") FROM "Table" WHERE "Champion" = 'erika wicoff' AND "Winner's share ($)" > 9750.0;