What is the test for dismissing a complaint for lack of jurisdiction under the Sherman Act?

A complaint should not be dismissed for lack of jurisdiction unless "it appears beyond doubt that the plaintiff can prove no set of facts in support of his claim which would entitle him to relief." McLain v. Real Estate Board, 444 U.S. 232, 246, 100 S.Ct. 502, 511, 62 L.Ed.2d 441 (1980) (quoting Conley v. Gibson, 355 U.S. 41, 45-46, 78 S.Ct. 99, 101, 2 L.Ed.2d 80 (1957)). "(T)he jurisdictional requirement of the Sherman Act may be satisfied under either the 'in commerce' or the 'effect on commerce' theory." Id. 444 U.S. at 242, 100 S.Ct. at 509. Initially a plaintiff must allege the critical relationship to interstate commerce. Id. Only if these allegations are disputed must the plaintiff submit evidence that the defendant's activity is in interstate commerce or that it has some effect on another activity in interstate commerce. Id.