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, tal2 .
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 xỉ, xk: