What is the test for a cause of action under the anti-SLAPP statute?

"A cause of action is subject to being stricken under the anti-SLAPP statute only if it 'arises from protected speech or petitioning and lacks even minimal merit.' [Citation.] A plaintiff is not required 'toprove the specified claim to the trial court'; rather, so as to not deprive the plaintiff of a jury trial, the appropriate inquiry is whether the plaintiff has stated and substantiated a legally sufficient claim. [Citation.] [] In deciding this question the court again considers the pleadings and evidentiary submissions of both the plaintiff and the defendant [citation]; however, it may not weigh the credibility or comparative probative strength of competing evidence. [Citation.] Rather, the court considers whether the plaintiff has made a prima facie showing of facts based on competent admissible evidence that would, if proved, support a judgment in the plaintiffs favor. [Citations.]" (Mann v. Quality Old Time Service, Inc., supra, 120 Cal.App.4th at p. 105.)