document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=735178>Question 735178</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Power+ , Inc. produces AA batteries used in remote-controlled toy cars. The mean life of these batteries follows the normal probability distribution with a mean of 35.0 hours and a standard deviation of 5.5 hours. As a part of its quality assurance program, Power+, Inc. tests samples of 25 batteries.\r<BR>\n" );
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document.write( "(a)	What is the standard error of the distribution of the sample mean? (Round your answer to 1 decimal place.)<BR>\n" );
document.write( "(b)	<BR>\n" );
document.write( "What proportion of the samples will have a mean useful life of more than 36 hours? (Round z value to 2 decimal places and final answer to 4 decimal places.)<BR>\n" );
document.write( "(c)	<BR>\n" );
document.write( "What proportion of the sample will have a mean useful life greater than 34.5 hours? (Round z value to 2 decimal places and final answer to 4 decimal places.)<BR>\n" );
document.write( "(e)	   What proportion of the sample will have a mean useful life between 34.5 and 36.0 hours? (Round z value to 2 decimal places and final answer to 4 decimal places.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #449296 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=449296\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  </SPAN>\n" );
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