document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=374112>Question 374112</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If a researcher wishes to determine whether there is evidence that the mean family income in the U.S. is greater than $30,000 then:\r<BR>\n" );
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document.write( " A. a two-tailed test should be utilized. <BR>\n" );
document.write( " B. either a one-tailed or a two-tailed test could be used since they are equivalent. <BR>\n" );
document.write( " C. a one-tailed test should be utilized <BR>\n" );
document.write( " D. none of the above. <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 #266248 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=266248\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> When you see key words like \"greater than \" or \"less than \", this means that only one rejection region will be present. This region will be in either tail of the distribution. So a one-tailed test is needed.\r<BR>\n" );
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document.write( "So the answer is C)\r<BR>\n" );
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document.write( "Note: choice B is not true as the two tests are actually quite different. </SPAN>\n" );
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