LOS ANGELES —Believe it. Wichita State is going to Atlanta, and these Shockers are no longer a surprise after the way the tenacious ninth seeds held off mighty Ohio State in the West Regional final.Malcolm Armstead scored 14 points, Fred Van Vleet bounced in a big basket with one minute left, and Wichita State earned its first trip to the Final Four since 1965 with a 70-66 victory over the Buckeyes on Saturday.Van Vleet scored 12 points as the Shockers (30-8) followed up last week’s win over top-ranked Gonzaga with a nail-biting victory over the second-seeded Buckeyes (29-8), whose 11-game winning streak ended one short of their second straight Final Four. Wichita State’s 20-point lead in the second half dwindled to three in the final minutes, but several Shockers stepped up with big plays to stop the surge, heeding coach Gregg Marshall’s halftime command to “play angry.”  All that anger turned into a joyous postgame party at midcourt, even though the Shockers realize they’ve got more work to do.Wichita State is just the fifth team seeded ninth or higher to reach the Final Four since seeding began in 1979, but the second in three years following 11th-seeded VCU’s improbable run in 2011. The Shockers’ celebration was wild, if a bit disbelieving, in front of several thousand roaring fans.Wichita State roared to a 20-point lead with 11 minutes to play after Ohio State played an awful first half, but LaQuinton Ross scored 15 of his 19 points after halftime, leading a ferocious rally that got the Buckeyes within three points in the final minutes.Tekele Cotton hit a clutch 3-pointer for Wichita State with 2:20 left and grabbed a key offensive rebound moments later, allowing VanVleet to score on a shot that bounced all over the rim before dropping. Ron Baker and Cotton hit last-minute free throws to secure the second Final Four trip in Wichita State’s history and a school-record 30th win.