document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1200946>Question 1200946</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose that in a population of voters in a certain region 38% are in<BR>\n" );
document.write( "favor of particular bond issue. Nine hundred randomly selected voters are asked if they favor<BR>\n" );
document.write( "the bond issue.<BR>\n" );
document.write( "(a) Verify that the sample proportion pˆ computed from samples of size 900 meets the condition that its sampling distribution be approximately normal.<BR>\n" );
document.write( "(b) Find the probability that the sample proportion computed from a sample of size 900 will<BR>\n" );
document.write( "be within 5 percentage points of the true population proportion. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #840421 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=840421\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> np and n(1-p) both are >10. Yes.<BR>\n" );
document.write( "error=z*sqrt(p(1-p)/n for z interval. <BR>\n" );
document.write( "0.05=z*sqrt(0.38*0.62/900)<BR>\n" );
document.write( "z<3.09 and that probability of no error is the probability of z between +/- 3.09 or 0.9980<BR>\n" );
document.write( " </SPAN>\n" );
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