health care provider conducted a survey to measure customer satisfaction. It sent out surveys to 1500  customers in the mail with return envelopes. After a month, the company received 280  completed surveys. Only 64  of those surveyed were happy with the service provided.  Part A: What was the response rate for the health care provider? Round to the nearest tenth of a percentage point.  Answer:    %    Part B: Which bias affected the satisfaction rating? Non-response bias Selection bias Response/measurement bias

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