document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1003477>Question 1003477</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello! Any help on this question would be greatly appreciate. Thanks so much!\r<BR>\n" );
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document.write( "A college student is interested in whether there is a difference between male and female students in the amount of time spent studying each week. The student gathers information from a random sample of male and female on campus. Amount of time spent studying is normally distributed. The data follow:<BR>\n" );
document.write( "Males 		Females<BR>\n" );
document.write( "27			25<BR>\n" );
document.write( "25			29<BR>\n" );
document.write( "19			18<BR>\n" );
document.write( "10			23<BR>\n" );
document.write( "16			20<BR>\n" );
document.write( "22			15<BR>\n" );
document.write( "14			19<BR>\n" );
document.write( "a. What statistical test should be used to analyze these data?<BR>\n" );
document.write( "b. Identify Ho and Ha for this study.<BR>\n" );
document.write( "c. Conduct the appropriate analysis.<BR>\n" );
document.write( "d. Should Ho be rejected? What should the researcher conclude?<BR>\n" );
document.write( "e. If significant, compute the effect size and interpret.<BR>\n" );
document.write( "f. if significant, draw a graph representing the data. <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #620170 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=620170\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Ho: m=f with hours studied<BR>\n" );
document.write( "Ha: m NE f<BR>\n" );
document.write( "alpha=0.05<BR>\n" );
document.write( "test statistic t df=12<BR>\n" );
document.write( "critical value |t|>2.1788<BR>\n" );
document.write( "t=(xbar1-xbar2)-(mu1-mu2)/sqrt {(s1^2/n1)+(s2^2/n2)}<BR>\n" );
document.write( "You should get means of samples of 19 and 21.29<BR>\n" );
document.write( "s1=6.11<BR>\n" );
document.write( "s2=4.72<BR>\n" );
document.write( "n1=n2=7<BR>\n" );
document.write( "t value is-0.783<BR>\n" );
document.write( "p=0.45<BR>\n" );
document.write( "Ho is not rejected, and this means there is insufficient evidence here to reject the null hypothesis that the hours studied are different. </SPAN>\n" );
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