question: What is the lowest average that has a swimsuit less than 8.966, for west virginia and an evening gown less than 8.711?
answer: SELECT MIN(average) FROM table_name_15 WHERE swimsuit < 8.966 AND state = "west virginia" AND evening_gown < 8.711
context: CREATE TABLE table_name_15 (average INTEGER, evening_gown VARCHAR, swimsuit VARCHAR, state VARCHAR)