document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1151691>Question 1151691</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a buyer of dutch paint complains that he is getting less than 4 galloons per container from his supplier. a sample of 100 containers reveals a mean of 3.8 grams with a standard deviation of 0.46 grams. Is the buyer's complaint valid ? use 0.05 level of significance. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #773590 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=773590\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Assume randomness and sample's being normally distributed\r<BR>\n" );
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document.write( "Ho: Mean is >=4.0<BR>\n" );
document.write( "Ha: Mean is < 4.0<BR>\n" );
document.write( "test stat is a t df=99 0.95<BR>\n" );
document.write( "critical value is t <-1.66<BR>\n" );
document.write( "t=(3.8-4)/0.46/sqrt(100)<BR>\n" );
document.write( "t=-0.2*10/0.46=-4.34<BR>\n" );
document.write( "This is highly significant, and the buyer's complaint is supported at the 5% level  </SPAN>\n" );
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