精炼假设

请从上述内容中用英语精炼出最适合我这个假设的内容，并以科学的语气改进文本。假设是H1a: Cultural Attraction (CA) has a significant positive effect on Tourist Satisfaction (SAT).

请从上述内容中用英语精炼出最适合我这个假设的内容，并以科学的语气改进文本。假设是H1a: Cultural Attraction (CA) has a significant positive effect on Tourist Satisfaction (SAT).