Answer :
SOLUTION
The standard error is:
[tex]SE=\sqrt{\frac{p(1-p)}{n}}[/tex]Substituting values gives:
[tex]\begin{gathered} SE=\sqrt{\frac{0.38(1-0.38)}{168}} \\ SE=0.037 \end{gathered}[/tex]Therefore the standard error is 0.037.
SOLUTION
The standard error is:
[tex]SE=\sqrt{\frac{p(1-p)}{n}}[/tex]Substituting values gives:
[tex]\begin{gathered} SE=\sqrt{\frac{0.38(1-0.38)}{168}} \\ SE=0.037 \end{gathered}[/tex]Therefore the standard error is 0.037.