EC255 Lecture Notes - Lecture 8: Binomial Distribution
Document Summary
Lecture 8: sometimes we want to know the population proportion of certain attributes, ex. If the true proportion of voters who support a proposition a is p = 0. 64, what is the probability that a sample of a size 200 yields a sample proportion between 0. 4 and 0. 45. If p = 0. 4 and n = 200: what is p (0. 4 (cid:1095) p hat (cid:1095) (cid:1004). (cid:1008)(cid:1009)(cid:895), find standard error of proportion, convert to standard normal. If 10% of a population of parts is defective, what is the probability of randomly selection.
