CREATE TABLE table_20586 ("Institution" TEXT, "Location" TEXT, "Founded" FLOAT, "Type" TEXT, "Enrollment" FLOAT, "Nickname" TEXT, "Joined" TEXT, "Left" TEXT, "Current Conference" TEXT)

Name the joined for blue hose
SELECT "Joined" FROM table_20586 WHERE "Nickname" = 'Blue Hose'
SELECT "Joined" FROM "table_20586" WHERE "Nickname" = 'Blue Hose'