document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=489597>Question 489597</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can someone explain to me why my questions are not being answered. I have submitted several over the past weeks and have not received an answer. If I am submitting them wrong would someone please tell me what I am doing wrong.<BR>\n" );
document.write( "1.A confidence interval is an interval estimate of which:  a population parameter or a sample statistic?  Please explain.\r<BR>\n" );
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document.write( "2. Consider a sample mean xbar   of 46 calculated from a sample of size 35 drawn from a population of over 1000.  <BR>\n" );
document.write( "Would it be appropriate to use the standard score table to look up the probability of a z score calculated on these data?<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 #333774 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=333774\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1.A confidence interval is an interval estimate of which: a population parameter or a sample statistic? Please explain.<BR>\n" );
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document.write( "Ans: A population parameter.<BR>\n" );
document.write( "A sample is used to develop the interval extimate, but the goal<BR>\n" );
document.write( "is to develop a confidence statement for the population mean<BR>\n" );
document.write( "or the population proportion, or some other population parameter.<BR>\n" );
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document.write( "2. Consider a sample mean xbar of 46 calculated from a sample of size 35 drawn from a population of over 1000. <BR>\n" );
document.write( "Would it be appropriate to use the standard score table to look up the probability of a z score calculated on these data?<BR>\n" );
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document.write( "Textbooks vary in answering questions of this type.  The current thinking<BR>\n" );
document.write( "is that the t-distribution should be used to test the population mean.<BR>\n" );
document.write( "I would suggest you carefully read the testing conditions in your text.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. \r<BR>\n" );
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