COMM 291 Study Guide - Midterm Guide: Turnstile, Confidence Interval, Statistical Hypothesis Testing

• School: UBC
• Department: Commerce
• Course: COMM 291
• Professor: Jonathan Berkowitz

Document Summary

The return of the greatest stats sheet ever. Type i error false positive (convict an innocent person) Type ii error false negative (let a guilty person go free) Test-statistic affects power: power goes up as z increases - , n , ( By increasing n you reduce the chance of getting errors. To find a required sample size in a one-sample z-test for p with given margin of error (e): n. 0 e b d l u o c. 2 r e g g i b s f i e h t f o. 1 t n e d n e p e d n i e r a s n p o. 1 r o f t s e t t s d e l o o p y t i l a m r o. M d r o f t s e t t e l p m a s o w.