Evaluate $E=\frac{(hat(t))*s_d}{\sqrt[\phantom{2}]{n}}$ for $t^{**}=-0\mathrm{.}673,s_d=3\mathrm{.}151,$ and $n=8.$

$E=($Round to three decimal places as needed.$)$

oxample

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$(\frac{0}{4})$

Didestronter$)(\frac{0}{7})$