document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1185131>Question 1185131</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A dietician read in a survey that 68.9% of adults in the U.S. do not eat breakfast at least 2 days a week. She believes that a larger proportion skip breakfast 2 days a week. To verify her claim, she selects a random sample of 71 adults and asks them how many days a week they skip breakfast. 49 of them report that they skip breakfast at least 2 days a week. Test her claim at  <BR>\n" );
document.write( "α= 0.05.\r<BR>\n" );
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document.write( "The test statistic is:______\r<BR>\n" );
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document.write( "The p-value is: _____ </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #815923 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=815923\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Assuming randomness and independence,<BR>\n" );
document.write( "p hat=49/71=0.690<BR>\n" );
document.write( "Ho: p >0.690<BR>\n" );
document.write( "Ha: p < = 0.690<BR>\n" );
document.write( "alpha=0.05 p{reject Ho|Ho true}<BR>\n" );
document.write( "test stat is a z<BR>\n" );
document.write( "reject for z> 1.645<BR>\n" );
document.write( "z=(0.690-0.689)/sqrt (0.689*0.311/71)<BR>\n" );
document.write( "=0.001/0.0549=+0.018<BR>\n" );
document.write( "fail to reject Ho, insufficient evidence to support the claim.<BR>\n" );
document.write( "p-value is 0.493\r<BR>\n" );
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document.write( " </SPAN>\n" );
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