I am having trouble on calculating the critical values with a given confidence level.

Please write your respond on separate piece of paper, then take picture and insert the picture(s) in a word document. Then upload the word document. Or you may upload one pdf file. Let's practice on how to calculate the critical values with a given confidence interval, (this also refers to the critical values for two-tailed in chapter 8, 9) as well as some relates terms: 1) Given confidence level = 92%. Sketch a graph (bell curve) with shaded tails. Find the area of each tail, then find the value of a, Za/2. 2) Given confidence level = 96% with sample size n = 36. Sketch a graph (bell curve) with shaded tails. Find the area of each tail, then find the value of a, ta/2 . 3) Given confidence level = 95%. Sketch a graph of the chi-square (skewed to the right). Find the area of each tail, then find the value of X1, XR