document.write( "Question 1103302: Find the critical value(z alpha\2) needed to construct an 82% confidence interval \n" ); document.write( "
Algebra.Com's Answer #718014 by stanbon(75887) ![]() You can put this solution on YOUR website! Find the critical value(z alpha\2) needed to construct an 82% confidence interval \n" ); document.write( "----- \n" ); document.write( "82% centered on the mean leaves (100-82)/2 = 9% tails on the left and on the right. \n" ); document.write( "------- \n" ); document.write( "Left-tail z-value = invNorm(0.09) \n" ); document.write( "Right-tail z-value = -invNorm(0.09) \n" ); document.write( "Answer:: -invNorm(0.09) = 1.3408 \n" ); document.write( "----------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "-------------- \n" ); document.write( " |