Question ID:PT35 S1 Q15 Passage:Statistician:  A financial magazine claimed that its survey of its subscribers showed that North Americans are more concerned about their personal finances than about politics. One question was:  "Which do you think about more:  politics or the joy of earning money?" This question is clearly biased. Also, the readers of the magazine are a self-selecting sample. Thus, there is reason to be skeptical about the conclusion drawn in the magazine's survey. Stem:Each of the following, if true, would strengthen the statistician's argument EXCEPT: Correct Answer Choice:EChoice A:The credibility of the magazine has been called into question on a number of occasions. Choice B:The conclusions drawn in most magazine surveys have eventually been disproved. Choice C:Other surveys suggest that North Americans are just as concerned about politics as they are about finances. Choice D:There is reason to be skeptical about the results of surveys that are biased and unrepresentative. Choice E:Other surveys suggest that North Americans are concerned not only with politics and finances, but also with social issues.