94)
$\sum x = 10 \times 14 = 140$
$\sum x_{adj} = 140 + 11 + 9 - 4 -6= 150$
$\overline{x}_{adj} = \frac{150}{10} = 15$
$\sigma ^2 = \frac{\sum x^2}{N} - \overline{x}^2$
$4^2 = \frac{\sum x^2}{10} - 14^2$
$\sum x^2 = 2120$
$\sum x^2_{adj} = 2120 + 11^2 + 9^2 - 4^2 - 6^2 = 2270$
$\sigma ^2 _{adj}= \frac{2270}{10} - 15^2$
$\sigma_{adj}= \sqrt{2} $
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