(Solved): Answer both questions please Use the given ihformation to find the number of degrees of treedom, th ...

Use the given ihformation to find the number of degrees of treedom, the critial values $x_L^2$ and $x_R^2$, and the confidence interval estmase of e. it is teatonablo to assume that a simple nandom sample has been selected from a populasion with a normal ditribution. Nicotine in menthol cigarbtles $90\%$ confidence, $n=28,5=0.25\mathrm{mg}$ Cick the icon to viow the table of Chrsquare critical values df = (Type a whole number) Here are summary statistics for the weights of Pepsi in randomly selected cans: $n=36,\vec{x}=0.82408\mathrm{lb},8=0,00574\mathrm{lb}$. Use a confidence level of $95\%$ to complete parts (s) through (d) belox a. Identify the chical value $t/2$ used for finding the margin of erros ${\mathrm{ta}}_2=$ (Round to two decimal places as needed.)