document.write( "Question 135291: For the following set of data, test the hypothesis that the average is 10. Run a test of that hypothesis and present the conclusion.
\n" ); document.write( "x
\n" ); document.write( "8.9
\n" ); document.write( "9.7
\n" ); document.write( "10.3
\n" ); document.write( "8.5
\n" ); document.write( "10.4
\n" ); document.write( "9.3
\n" ); document.write( "9.8
\n" ); document.write( "7.1
\n" ); document.write( "10.6
\n" ); document.write( "11.1
\n" ); document.write( " \n" ); document.write( "
Algebra.Com's Answer #99146 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
For the following set of data, test the hypothesis that the average is 10. Run a test of that hypothesis and present the conclusion.
\n" ); document.write( "x
\n" ); document.write( "8.9
\n" ); document.write( "9.7
\n" ); document.write( "10.3
\n" ); document.write( "8.5
\n" ); document.write( "10.4
\n" ); document.write( "9.3
\n" ); document.write( "9.8
\n" ); document.write( "7.1
\n" ); document.write( "10.6
\n" ); document.write( "11.1
\n" ); document.write( "------------
\n" ); document.write( "Ho: u = 10
\n" ); document.write( "Ha: u is not 10
\n" ); document.write( "-----------------------
\n" ); document.write( "x-bar = 9.56
\n" ); document.write( "-----------
\n" ); document.write( "Critical value if alpha = 5%: z = +/- 1.96
\n" ); document.write( "----------------
\n" ); document.write( "Test statistic: z(9.56)= (9.56-10)*1.16256../[sqrt(10)] = -1.1968...
\n" ); document.write( "---------------
\n" ); document.write( "Conclusion: Since test statistic does not lie in the rejection interval,
\n" ); document.write( "Fail to reject Ho. The test provided statistical evidence that the mean
\n" ); document.write( "is 10.
\n" ); document.write( "=====================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
\n" );