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| Teaching Since: | May 2017 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Banning ephedra. An online poll at a popular Web site asked:

65% of 17,303 respondents said yes. Comment on each of the following statements about this poll:
a) With a sample size that large, we can be pretty certain we know the true proportion of Americans who think ephedra should be banned.
b) The wording of the question is clearly very biased.
c) The sampling frame is all Internet users.
d) This is a voluntary response survey, so the results can’t be reliably generalized to any population of interest.
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