document.write( "Question 1204400: Based on the data shown below, calculate the regression line (each value to two decimal places)\r
\n" ); document.write( "\n" ); document.write( "y =
\n" ); document.write( " x + \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "x y
\n" ); document.write( "4 11.5
\n" ); document.write( "5 12.85
\n" ); document.write( "6 15
\n" ); document.write( "7 14.95
\n" ); document.write( "8 15.7
\n" ); document.write( "9 17.15
\n" ); document.write( "10 17.1
\n" ); document.write( "11 19.85
\n" ); document.write( "12 20.3
\n" ); document.write( "13 21.45
\n" ); document.write( "14 21.1
\n" ); document.write( "15 22.45
\n" ); document.write( "16 26.7
\n" ); document.write( "17 25.35
\n" ); document.write( "18 28.8
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #840616 by MathLover1(20849) $\"\"$ $\"About$

You can put this solution on YOUR website!

\n" ); document.write( " $\"y=mx%2Bb\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x\"$ | $\"+y\"$
\n" ); document.write( " $\"4\"$ | $\"+11.5\"$
\n" ); document.write( " $\"5\"$ | $\"+12.85\"$
\n" ); document.write( " $\"6\"$ | $\"+15\"$
\n" ); document.write( " $\"7\"$ | $\"+14.95\"$
\n" ); document.write( " $\"8+\"$ | $\"15.7\"$
\n" ); document.write( " $\"9\"$ | $\"+17.15\"$
\n" ); document.write( " $\"10\"$ | $\"+17.1\"$
\n" ); document.write( " $\"11\"$ | $\"+19.85\"$
\n" ); document.write( " $\"12\"$ | $\"+20.3\"$
\n" ); document.write( " $\"13\"$ | $\"+21.45\"$
\n" ); document.write( " $\"14\"$ | $\"+21.1\"$
\n" ); document.write( " $\"15\"$ | $\"+22.45\"$
\n" ); document.write( " $\"16\"$ | $\"+26.7\"$
\n" ); document.write( " $\"17\"$ | $\"+25.35\"$
\n" ); document.write( " $\"18\"$ | $\"+28.8\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Sample size: $\"15\"$
\n" ); document.write( "Mean $\"x\"$ (x̄): $\"11\"$
\n" ); document.write( "Mean $\"y\"$ (ȳ): $\"19.35\"$
\n" ); document.write( "Intercept ( $\"b\"$ ): $\"7.069\"$
\n" ); document.write( "Slope ( $\"m\"$ ): $\"1.116\"$ \r
\n" ); document.write( "\n" ); document.write( "Regression line equation:\r
\n" ); document.write( "\n" ); document.write( " $\"y+=+1.116x+%2B+7.069\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"linear-regression-image\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );