A restaurant chain would like to measure the proportion of customers who are generally satisfied with the service provided by its staff. At the end of the meal, as the check is delivered to the table, the server asks those at the table to rate their satisfaction with the service provided as "Very Satisfied,” "Satisfied,” or "Not Satisfied.” During a one-week period, 147 customers were surveyed and 135 (93%) reported they were either Satisfied or Very Satisfied. What type of bias may be present in the survey results?
Answer
A
This is nonresponse bias because customers may not respond to the question.
B
This is question wording bias because the question may be misleading to some customers.
C
This is response bias because customers may not respond truthfully to the server.
D
This is voluntary response bias because customers can choose to be part of the sample.
Explanation
Response bias may occur because customers are asked to evaluate the service directly by the server who provided it. They may feel uncomfortable giving a negative rating and may not answer truthfully, which could make satisfaction appear higher than it really is. This is response bias, not nonresponse bias, because the concern is inaccurate answers rather than customers skipping the question.
AI-written and checked against the verified answer.