document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1188535>Question 1188535</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The following are data for 12 individual’s daily sodium intake and their systolic blood pressure readings.\r<BR>\n" );
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document.write( "Person<BR>\n" );
document.write( "1<BR>\n" );
document.write( "2<BR>\n" );
document.write( "3<BR>\n" );
document.write( "4<BR>\n" );
document.write( "5<BR>\n" );
document.write( "6<BR>\n" );
document.write( "7<BR>\n" );
document.write( "8<BR>\n" );
document.write( "9<BR>\n" );
document.write( "10<BR>\n" );
document.write( "11<BR>\n" );
document.write( "12\r<BR>\n" );
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document.write( "Sodium<BR>\n" );
document.write( "6.8<BR>\n" );
document.write( "7.0<BR>\n" );
document.write( "6.9<BR>\n" );
document.write( "7.2<BR>\n" );
document.write( "7.3<BR>\n" );
document.write( "7.0<BR>\n" );
document.write( "7.0<BR>\n" );
document.write( "7.5<BR>\n" );
document.write( "7.3<BR>\n" );
document.write( "7.1<BR>\n" );
document.write( "6.5<BR>\n" );
document.write( "6.4\r<BR>\n" );
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document.write( "BP<BR>\n" );
document.write( "154<BR>\n" );
document.write( "167<BR>\n" );
document.write( "162<BR>\n" );
document.write( "175<BR>\n" );
document.write( "190<BR>\n" );
document.write( "158<BR>\n" );
document.write( "166<BR>\n" );
document.write( "195<BR>\n" );
document.write( "189\r<BR>\n" );
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document.write( "A researcher investigator is interested in learning how strong the association is between these variables and how well we can predict blood pressure from sodium intake.\r<BR>\n" );
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document.write( "a.Calculate the value of r and the regression equation for the data.<BR>\n" );
document.write( "b.Test the hypothesis at 0.05 level of significance.<BR>\n" );
document.write( "c.What would be a likely blood pressure for a person with sodium of 6.3?  How about sodium of 7.6?<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 #819894 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=819894\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> unfortunately, you don't have 12 blood pressure readings.<BR>\n" );
document.write( "you only have 9.<BR>\n" );
document.write( "i did an analysis with the first 9 pairs, using the regression tool at <a  rel=nofollow HREF= \"https://www.statskingdom.com/linear-regression-calculator.html\" target = \"_blank\">https://www.statskingdom.com/linear-regression-calculator.html</a>\r<BR>\n" );
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document.write( "the results are shown below:\r<BR>\n" );
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document.write( "there's lots of information in the output.<BR>\n" );
document.write( "what you probably want to concentrate on is the following:\r<BR>\n" );
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document.write( "regression line is y = 64.3478 * x - 284.6957.<BR>\n" );
document.write( "p-value = .0003 which is < than .05, indicating the results are significant.<BR>\n" );
document.write( "r^2 = .9278, indicating that most of the data results from the relationship between the variables.<BR>\n" );
document.write( "r = .9632, indicating a strong positive relationship exists.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" src = \"http://theo.x10hosting.com/2021/121203.jpg\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" src = \"http://theo.x10hosting.com/2021/121204.jpg\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" src = \"http://theo.x10hosting.com/2021/121205.jpg\" >\r<BR>\n" );
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document.write( "when you find your missing data, you can run the regression calculator yourself, although i doubt, from what is already there, that the results will be different.<BR>\n" );
document.write( "however, just to be sure, i would run the analysis with the missing data, and i recommend you do the same.<BR>\n" );
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