Table: hoosier_ath_conf
Columns: school
city
team_name
enrollment_08_09
ihsaa_class
ihsaa_class_football
county
year_joined

Question: What is the IHSAA Class for football for the team joining in 1968?
SQL: SELECT "ihsaa_class_football" FROM hoosier_ath_conf WHERE "year_joined" = 1968

Question: What is the IHSAA class for Tipton?
SQL: SELECT "ihsaa_class" FROM hoosier_ath_conf WHERE "school" = 'tipton'