Discrepancies in CNA's National Conversation Poll spotted by netizens

The Temasek Times, 16 Sep 2012
When Education Minister Heng Swee Keat asked the audience of some 20 people during the first session of the ‘Singapore Conversation’ aired on Friday if they believe the next generation will have a better future, about 70 percent agree which prompted him to describe it as an ‘encouraging’ sign:
“I’m actually quite optimistic when I hear from all of you. When you talk about values, many of you have expressed aspirations about the Singapore that you want,” he said.
However, an online poll conducted by Channel News Asia at the same time reveals the opposite:

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