document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=912227>Question 912227</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An employer wants to estimate to set a time limit so that 90% of the employees will finish a job on time. Past history has shown that the time required to do the job is normally distributed and has a mean time of 32 minutes with a standard deviation of 6 minutes. How much time should the employer allow employees to finish the job?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #553662 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=553662\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An employer wants to estimate to set a time limit so that 90% of the employees will finish a job on time. Past history has shown that the time required to do the job is normally distributed and has a mean time of 32 minutes with a standard deviation of 6 minutes. How much time should the employer allow employees to finish the job? <BR>\n" );
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document.write( "Find the z-value with a left tail of 0.90<BR>\n" );
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document.write( "invNorm(0.90) = 1.2816<BR>\n" );
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document.write( "Find the corresponding time value:<BR>\n" );
document.write( "x = z*s + u<BR>\n" );
document.write( "Ans::x = 1.2816*6 + 32 = 39.69 minutes<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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