<PRE><B>Question 971404</B>
 In a poll, 341 out of 775 New York voters surveyed indicated that they approve of the job DeBlasio has done as mayor. Make a 99% confidence interval for the percentage of all New York voters who would approve of DeBlasio’s performance as mayor. Describe the meaning of the interval that you found. 
--------
p-hat = 341/775 = 0.44
------
ME = 2.5758*sqrt[0.44*0.56/441] = 0.0609
--------
99%CI:: 0.44-0.06 &lt; p &lt; 0.44+0.06
---------------
99%CI:: 0.38 &lt; p &lt; 0.50
--------
Mean:: We have 99% confidence that the population proportion is
between 38% and 50%
-----------------
Cheers,
Stan H.
-------------</PRE>