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مشاهدة النسخة كاملة : How the AP-GfK poll on cars was conducted (AP)



Mgtrben news
04-21-2010, 10:12 AM
AP - The Associated Press-GfK Poll on cars was conducted by GfK Roper Public Affairs & Media from March 3-8. 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.

Apple/Macintosh News (http://us.rd.*****.com/dailynews/rss/wireless/*http://news.*****.com/s/ap/20100421/ap_on_bi_ge/us_ap_poll_cars_method)