A research team conducts a survey on customer satisfaction with a new product. They aim to gather feedback from 1000 customers randomly selected from their database. However, only 750 customers respond to the survey, resulting in a nonresponse rate of 25%. Part A: What type of error exists? Question 3 options: Nonresponse error Sampling error Measurement error Selection bias Question 4 (2 points) Part B: How might this mistake affect the survey results? Question 4 options: The survey results will not be affected The survey results will be unclear The survey results will be less accurate The survey results will be more accurate