Question $2$

Calculate the two$-$sided $95\%$ confidence interval for the population standard deviation $($sigma$)$ given that a sample of size $n=20$ yields a sample standard deviation of $15\mathrm{.}86.$

Your answer:

$\backslash$table$[[19\mathrm{.}68$ sigma $<mn\; id="EditorElement\_1540457">3</mn><mn\; id="EditorElement\_1540458">6</mn><mn\; id="EditorElement\_1540459">.</mn><mn\; id="EditorElement\_1540460">3</mn><mn\; id="EditorElement\_1540461">0</mn>$