determine whether the sampling method describ...
determine whether the sampling method described below appears to be sound or is flawed. in a survey of 688 subjects, the following question was posted on a newspapers website: in your view, are nuclear plants safe? the survey subjects were internet users who chose to respond to the question posted on the electronic edition of the newspaper. choose the correct answer below. a. it is flawed because it is a census. b. it is flawed because it is not statistically significant. c. it is flawed because it is a voluntary response sample. d. it appears to be sound because the data are not biased in any way.
Answer
# Brief Explanations:
The survey relies on Internet - users who voluntarily chose to respond. Voluntary response samples often have bias as those with stronger opinions are more likely to participate, which can skew the results. It is not a census as not all possible subjects were surveyed, and statistical significance is not the main issue here. The data is likely biased due to the voluntary nature of the response.
# Answer:
C. It is flawed because it is a voluntary response sample.