document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=880869>Question 880869</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Let's say you perform a left tailed test.<BR>\n" );
document.write( "Calculated test statistics is z = –1.82.<BR>\n" );
document.write( "Significance level is 5% (0.05).<BR>\n" );
document.write( "Find Critical Cutoff z-value, identify Rejection Region.<BR>\n" );
document.write( "Does test statistics z-value fall in Rejection Region? <BR>\n" );
document.write( "Should we reject or do not reject null hypothesis?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #531770 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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/cgi-bin/show-face.mpl?user=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=531770\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Critical Cutoff z-value = invNorm(.05) = -1.645<BR>\n" );
document.write( "Rejection Region: z < -1.645<BR>\n" );
document.write( "z = -1.82 falls in rejection region -1.82 < -1.645<BR>\n" );
document.write( "reject null hypothesis<BR>\n" );
document.write( "For the normal distribution: Below:  z = 0, z = ± 1, z= ±2 , z= ±3 are plotted.  <BR>\n" );
document.write( "Area under the standard normal curve to the left of the particular z is P(z)<BR>\n" );
document.write( "Note: z = 0 (x value: the mean) 50% of the area under the curve is to the left and 50%  to the right<BR>\n" );
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document.write( " </SPAN>\n" );
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