What is the legal test for a jury to determine the sufficiency of evidence in a sexual assault case?

"[A]nalyzing evidence, and determining the facts, are functions peculiarly within the expertise of juries. Although appellate courts review the sufficiency of the evidence supporting verdicts, such review is narrowly prescribed. '[T]he court must review the whole record in the light most favorable to the judgment below to determine whether it discloses substantial evidencethat is, evidence which is reasonable, credible, and of solid valuesuch that a reasonable trier of fact could find the defendant guilty beyond a reasonable doubt.' [Citations.] [] This standard means that when an appellate court determines that the evidence was insufficient, it has concluded that no 'reasonable' trier of fact could have found the defendant guilty." (People v. Guiton (1993) 4 Cal.4th 1116, 1126-1127.)

Page 8