document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=704079>Question 704079</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A researcher claims that the average age of people who buy lottery tickets is 58. A sample of 30 is selected and their ages are recorded as shown below. The standard deviation is 7. At a = 0.01 is there enough evidence to reject the researcher’s claim?  <BR>\n" );
document.write( " <BR>\n" );
document.write( "65<BR>\n" );
document.write( "63<BR>\n" );
document.write( "26<BR>\n" );
document.write( "52<BR>\n" );
document.write( "74<BR>\n" );
document.write( "80<BR>\n" );
document.write( "72<BR>\n" );
document.write( "56<BR>\n" );
document.write( "36<BR>\n" );
document.write( "56<BR>\n" );
document.write( "79<BR>\n" );
document.write( "60<BR>\n" );
document.write( "70<BR>\n" );
document.write( "74<BR>\n" );
document.write( "70<BR>\n" );
document.write( "61<BR>\n" );
document.write( "65<BR>\n" );
document.write( "71<BR>\n" );
document.write( "28<BR>\n" );
document.write( "74<BR>\n" );
document.write( "79<BR>\n" );
document.write( "75<BR>\n" );
document.write( "38<BR>\n" );
document.write( "49<BR>\n" );
document.write( "62<BR>\n" );
document.write( "68<BR>\n" );
document.write( "45<BR>\n" );
document.write( "67<BR>\n" );
document.write( "69<BR>\n" );
document.write( "45<BR>\n" );
document.write( "Please can someone walk me through this !! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #433925 by </B><A HREF=/tutors/aboutme.mpl?userid=lynnlo><B>lynnlo(4176)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lynnlo><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=433925\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> OK, I DID AN EXAMPLE FOR YOU SO YOU CAN UNDERSTAND IT BETTER:<BR>\n" );
document.write( "MY EXAMPLE IS AGE OF PEOPLE IS 65,WITH A SAMPLE OF 30\r<BR>\n" );
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document.write( "FRIST ADD UP ALL YOUR DATA TO GET A SUM<BR>\n" );
document.write( "MY SUM IS 1725<BR>\n" );
document.write( "TO GET X-BAR 1725 DIVIDE BY 30,,,X-BAR =57.5<BR>\n" );
document.write( "STANDARD DEVIATION= &#963;=6<BR>\n" );
document.write( "SAMPLE SIZE N=30<BR>\n" );
document.write( "HO:µ=65<BR>\n" );
document.write( "HA:=#65<BR>\n" );
document.write( "A=0.01<BR>\n" );
document.write( "AT THE SIGNIFICANCE LEVEL OF A=0.01,THE CRITICAL VALUE FOR Z -CRIT.=±1.285<BR>\n" );
document.write( "TEST STATISTIC Z=(X BAR -µ)/(&#963;/&#8730;N)=<BR>\n" );
document.write( "(57.5-65)/(6/&#8730;30)=-6.84653<BR>\n" );
document.write( "SINCE -6.84653<-1.285 WE REJECT HO AND THEREFORE CONCLUDES THAT THE <BR>\n" );
document.write( "RESEACHERS CALIM IS NOT TRUE. <BR>\n" );
document.write( "YOU STUDY THIS EXAMPLE AND I AM SURE YOU WILL THEN KNOW HOW TO DO YOUR PROBLEM<BR>\n" );
document.write( "THIS EXAMPLE IS JUST LIKE WALKING YOU THROUGH  </SPAN>\n" );
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