Local government officials would like to know if city residents are generally satisfied with the cleanliness of local streets and recreation areas. To estimate the level of satisfaction, the officials are considering many methods to collect information. Which of the following methods would not provide a voluntary response sample? A) The city’s webpage contains a survey where residents can share their opinions.
B) A printed survey is provided in the Sunday newspaper requesting that residents mail in their responses.
C) A random sample of homes in the city is taken, and city officials visit these homes and survey the homeowners.
D) The local officials are guests on a radio talk show, and residents call in to the show to share their opinions.