Assist with these question to clarify

1. How do you evaluate a product or service? Provide an example.
2. How do Marketers Measure Quality and Customer Satisfaction? Provide an example.
3. New businesses are frequently launched as a means to smooth over dissatisfaction with a current glitch in the industry. Pick some industry and solve its customer dissatisfaction problem(s). For example, if you find flying annoying, or you're not happy with your dentist, what changes could you make to enter that industry and enhance customer satisfaction (and be profitable)?