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مشاهدة النسخة كاملة : How the poll on oil spill/drilling was conducted (AP)



Mgtrben news
05-13-2010, 11:51 AM
AP - The Associated Press-GfK Poll on the oil spill in the Gulf of Mexico was conducted by GfK Roper Public Affairs & Media from May 7-11. It is ****d on landline and cell phone telephone interviews with a nationally representative random sample of 1,002 adults. Interviews were conducted with 702 respondents on landline telephones and 300 on cellular phones.

Source (http://us.rd.*****.com/dailynews/rss/tech/*http://news.*****.com/s/ap/20100513/ap_on_bi_ge/us_gulf_oil_spill_poll_method)