document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=127725>Question 127725</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me. This question is taken from the Stats and Econ Question # 9.54  I checked the answers and this one is not answered.\r<BR>\n" );
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document.write( "Faced with rising fax costs, a firm issued a guideline that transmissions of 10 pages or more should be sent by 2-day mail instead. Exceptions are allowed, but they want the average to be 10 or below. The firm examined 35 randomly chosen fax transmissions during the next year, yielding a sample mean of 14.44 with a standard deviation of 4.45 pages. \r<BR>\n" );
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document.write( "(a) At the .01 level of significance, is the true mean greater than 10?\r<BR>\n" );
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document.write( "(b) Use Excel to find the right-tail p-value.\r<BR>\n" );
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document.write( "Thank you for your kind assistance.\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #93598 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=93598\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Faced with rising fax costs, a firm issued a guideline that transmissions of 10 pages or more should be sent by 2-day mail instead. Exceptions are allowed, but they want the average to be 10 or below. The firm examined 35 randomly chosen fax transmissions during the next year, yielding a sample mean of 14.44 with a standard deviation of 4.45 pages. <BR>\n" );
document.write( "(a) At the .01 level of significance, is the true mean greater than 10? <BR>\n" );
document.write( "Ho: mu <= 10<BR>\n" );
document.write( "Ha: mu > 10<BR>\n" );
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document.write( "one-tail t-test with alpha=1%; critical value for 34 df = 2.326<BR>\n" );
document.write( "Test statistic: <BR>\n" );
document.write( "t(14.44) = (14.44-10)/[4.45/sqrt(35)] = 5.9028<BR>\n" );
document.write( "Reject Ho; there is significal statistical evidence that the true mean<BR>\n" );
document.write( "is not <= 10<BR>\n" );
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document.write( "(b) Use Excel to find the right-tail p-value.<BR>\n" );
document.write( "p-value = 0.00000057579<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. <BR>\n" );
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