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May 6th, 2018, 03:22 PM  #1 
Newbie Joined: May 2018 From: Guam Posts: 1 Thanks: 0  statistics homework help please
A television news story claimed that half of all U.S. adults have health issues. In a national poll about health issues (CDC Project), 12,638 U.S. adults were surveyed and it was found that 6413 of those surveyed had health issues. At a 5% level of significance, perform a hypothesis test to test the claim made by the television news story. What is the correct conclusion? I get a Z Score of 0 not sure where to proceed from there 
May 9th, 2018, 11:45 AM  #2 
Senior Member Joined: Feb 2010 Posts: 674 Thanks: 127 
You have not specified whether this is a onetail or twotail test. For a onetail test you should get $\displaystyle p=0.047$. The twotail test is double that. Are you sure you have the right formula? $\displaystyle z=\dfrac{\widehat{p}p}{\sqrt{\dfrac{pq}{n}}}$ 

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