#23- A medical journal used a questionnaire survey to

[katehos]

Hi rrurrec!

Yes, it's certainly possible that (E) could weaken the argument -- hence why we can eliminate it! You can, of course, alter the actual sizes of the dissatisfied and satisfied groups to create a scenario in which (E) strengthens the argument but that still leaves (E) as an incorrect answer since it could weaken, could strengthen, or could even do nothing. Ultimately, (E) does not definitively strengthen the argument, and, like you mentioned, likely weakens the argument because it points out flaws with the sample. Good work!

Hope this helps
Kate

[Moriarty]

This is my answer. We are looking for best evidence that the journal's decision will have the desired effect of increasing its readership. For increases in readership, potential readership is what matters. If the % of surveyed readers who like the format change was almost the same as the percentage of the entire potential readership who would like the format change, it means that 62% of the potential readership would like the format change. Thus it provides strong evidence that the journal's decision will have its desired effect.

[Jeff Wren]

Hi Moriarty,

Good job! Excellent analysis.