CREATE TABLE table_name_88 (year_joined NUMBER, mascot VARCHAR2, size VARCHAR2, previous_conference VARCHAR2)

Which Year Joined has a Size larger than 93, and a Previous Conference of none (new school), and a Mascot of rebels?
SELECT AVG(year_joined) FROM table_name_88 WHERE size > 93 AND previous_conference = "none (new school)" AND mascot = "rebels"
SELECT AVG("year_joined") FROM "table_name_88" WHERE "mascot" = "rebels" AND "none (new school)" = "previous_conference" AND "size" > 93