document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=275991>Question 275991</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You have measured the temperature of a large number of patients at a local clinic.\r<BR>\n" );
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document.write( "You find the 95% confidence interval to be 96.7 and 99.1.\r<BR>\n" );
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document.write( "In another sample of a large number of patients a mistake was made in an entry.\r<BR>\n" );
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document.write( "a.  If instead of an entry of 98.6 an error was made and entered as 9.86, what is the effect on the confidence interval?  Explain.\r<BR>\n" );
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document.write( "b.  If instead of an entry of 98.6 an error was made and entered as 986, what is the effect on the confidence interval?  Explain.\r<BR>\n" );
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document.write( "c.  What tips you to a confidence interval that needs investigation for error?\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 #201264 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=201264\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You have measured the temperature of a large number of patients at a local clinic. \r<BR>\n" );
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document.write( "You find the 95% confidence interval to be 96.7 and 99.1. \r<BR>\n" );
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document.write( "In another sample of a large number of patients a mistake was made in an entry. \r<BR>\n" );
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document.write( "a. If instead of an entry of 98.6 an error was made and entered as 9.86, what is the effect on the confidence interval? Explain.<BR>\n" );
document.write( "The sample mean (x-bar) will be lower so the confidence<BR>\n" );
document.write( "interval will slide to the left.   \r<BR>\n" );
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document.write( "b. If instead of an entry of 98.6 an error was made and entered as 986, what is the effect on the confidence interval? Explain.<BR>\n" );
document.write( "The sample mean (x-bar) will be higher so the CI will slide to the right.\r<BR>\n" );
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document.write( "c. What tips you to a confidence interval that needs investigation for error? <BR>\n" );
document.write( "The range of the CI seems to be out of keeping with the range of the data.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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