In: Statistics and Probability
Find the critical t-value that corresponds to 70% confidence. Assume 22 degrees of freedom.
Solution:
Given:
c = confidence level = 70% = 0.70
then two tail area = 1 - c = 1 - 0.70 = 0.30
df = 22
Look in t table for df = 22 and two tail area = 0.30 and find t critical value
thus t critical value = 1.061