document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=233172>Question 233172</A>: <I><SPAN STYLE=\"word-break: break-all;\">  A researcher claims that the average age of people who buy theatre tickets is 40. A sample of 30 is selected and their ages are recorded as shown below. The standard deviation is 5.  At &#945; = 0.05 is there enough evidence to reject the researcher’s claim?  Show all work. <BR>\n" );
document.write( " 45<BR>\n" );
document.write( " 38<BR>\n" );
document.write( " 40<BR>\n" );
document.write( " 45<BR>\n" );
document.write( " 35<BR>\n" );
document.write( " 37<BR>\n" );
document.write( " 45<BR>\n" );
document.write( " 43<BR>\n" );
document.write( " 45<BR>\n" );
document.write( " 48<BR>\n" );
document.write( " <BR>\n" );
document.write( "44<BR>\n" );
document.write( " 38<BR>\n" );
document.write( " 45<BR>\n" );
document.write( " 44<BR>\n" );
document.write( " 41<BR>\n" );
document.write( " 45<BR>\n" );
document.write( " 50<BR>\n" );
document.write( " 45<BR>\n" );
document.write( " 37<BR>\n" );
document.write( " 39<BR>\n" );
document.write( " <BR>\n" );
document.write( "45<BR>\n" );
document.write( " 46<BR>\n" );
document.write( " 35<BR>\n" );
document.write( " 41<BR>\n" );
document.write( " 39<BR>\n" );
document.write( " 41<BR>\n" );
document.write( " 38<BR>\n" );
document.write( " 39<BR>\n" );
document.write( " 39<BR>\n" );
document.write( " 55<BR>\n" );
document.write( " <BR>\n" );
document.write( "I really need help with this question. I tried all the avenue to solve this problem. Thanks for all your help and support.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #172165 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=172165\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What avenues have you tried?<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Ho: u = 40<BR>\n" );
document.write( "Ha: u is not 40<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "Now add up all the numbers and divide by 30 to get the sample mean.<BR>\n" );
document.write( "Now run a Ttest to get the test statistic and/or the p-value.<BR>\n" );
document.write( "If the p-value is <5%, reject Ho.<BR>\n" );
document.write( "--------------------------------------<BR>\n" );
document.write( "Let me know if this is what you need.<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );