document.write( "Question 1158759: Suppose you want to test the claim that μ ≠ 3.5. Given a sample size of n = 40 and a level of α=0.05 when should you reject H 0 ?
\n" ); document.write( "A)Reject H0 if the standardized test statistic is greater than 1.645 or less than -1.645
\n" ); document.write( "B)Reject H0 if the standardized test statistic is greater than 2.575 or less than -2.575
\n" ); document.write( "C)Reject H0 if the standardized test statistic is greater than 2.33 or less than -2.33.
\n" ); document.write( "D)Reject H0 if the standardized test statistic is greater than 1.96 or less than -1.96.\r
\n" ); document.write( "\n" ); document.write( "This should be a two-tailed test, with the critical values at the α = 0.05 level of significance and n - 1 =39 degrees of freedom. The T Value calculator showed the T-Value (two-tailed)to be +/- 2.022691. I don't think I'm doing this right...
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #781735 by Boreal(15235) $\"\"$ $\"About$

You can put this solution on YOUR website!
This isn't clear to me. It is a two way test, as you have stated, but the answer choices imply that the population sd is known already, which isn't shown here. Given those choices, all of which are well-known z-values (alpha of 0.10, 0.l01, 0.01, and 0.05 respectively), the best choice would be D. \r
\n" ); document.write( "\n" ); document.write( "Given the information shown, your answer is best, but presumably there is a known sd in this problem for those choices. \n" ); document.write( "

\n" );