A large e-commerce company wants to assess customer satisfaction with its online shopping experience. They send an email survey to 50,000 customers who made a purchase in the last month. Only 2,500 customers (5%) complete and return the survey. The survey results show an overwhelmingly positive satisfaction rate. Which of the following is the most significant limitation of this survey?
The sample size of 2,500 is too small to represent 50,000 customers.
The survey method is biased because it relies on email, excluding customers without email access.
The low response rate may lead to non-response bias, as customers who choose to respond might have different satisfaction levels than those who do not.
The survey should have been sent to customers who made purchases more than a month ago to get a broader perspective.
