document.write( "Question 517463: 12. Determine the critical region and critical values for z that would be used to test the null hypothesis at the given level of significance, as described in each of the following:
\n" ); document.write( "(A) H0:µ=79 and Ha:µ≠79, a=.01
\n" ); document.write( "(B) H0:µ≥53 and Ha:µ<53, a=.05
\n" ); document.write( "(C) H0:µ≤54 and Ha:µ>53, a=.10
\n" ); document.write( " \n" ); document.write( "
Algebra.Com's Answer #344785 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Determine the critical region and critical values for z that would be used to test the null hypothesis at the given level of significance, as described in each of the following:
\n" ); document.write( "(A) H0:µ=79 and Ha:µ≠79, a=.01
\n" ); document.write( "----
\n" ); document.write( "2-tail test ; CV = z = +/-2.5758
\n" ); document.write( "------------------------------------
\n" ); document.write( "(B) H0:µ≥53 and Ha:µ<53, a=.05
\n" ); document.write( "right tail test: CV = z = 1.6449
\n" ); document.write( "------------------------------------
\n" ); document.write( "(C) H0:µ≤54 and Ha:µ>53, a=.10
\n" ); document.write( "right tail test: CV = z = 1.645
\n" ); document.write( "====================================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "============\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
\n" );