CREATE TABLE table_67973 ("Year" FLOAT, "Record" TEXT, "Regular Season Finish" TEXT, "Playoffs" TEXT, "Avg. Attendance" FLOAT)

Year larger than 1975, and a Record of 13 11 is what playoffs?
SELECT "Playoffs" FROM table_67973 WHERE "Year" > '1975' AND "Record" = '13–11'
SELECT "Playoffs" FROM "table_67973" WHERE "Record" = '13–11' AND "Year" > '1975'