document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=139922>Question 139922</A>: <I><SPAN STYLE=\"word-break: break-all;\"> High levels of cockpit noise in an aircraft can damage the hearing of pilots who are exposed to this hazard for many hours. Aboeing 727 co-pilot collected 61 noise observations using a handheld sound meter. Noise level is defined as \"low\" (under 88 decibels), \"medium\" (88 to 91) decibels), or \"high\" (92 decibels or more). There are three flight phases (climb, cruise, descent). At a = .05 is the cockpit noise level independent of flight phase? ( Data are from capt. Robert E. Hartl.<BR>\n" );
document.write( "Noise level       Climb      Cruise       Descent       Row Total<BR>\n" );
document.write( "Low                6          2             6             14<BR>\n" );
document.write( "medium            18          3             8             29<BR>\n" );
document.write( "high               1          3             14            18<BR>\n" );
document.write( "col total         25          8             28            61<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 #102041 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=102041\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Go to www.algebra.com<BR>\n" );
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document.write( "Stan H. </SPAN>\n" );
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