PSY 230 Lecture Notes - Lecture 5: Null Hypothesis, Standard Score, Confidence Interval

• School: University of Arizona
• Department: Psychology Main
• Course: PSY 230
• Professor: ashleyjordan

Document Summary

If there are 5 people per sample, the variance will be 1/5 the variance of the population of individuals. 4: i split the class into 5 different samples containing 40 people in each sample, what is m, formula to know, answer: = 1, so m = 1, comprehension check: what is 2. M : formula to know, variance = 1. 12; number of people per sample = 40, answer: 2. Answer: z = 2 1 = _1 _ = 5. 88. 17 . 17: note: we"d sol(cid:448)ed for m & m on previous. Comprehension check slides, so we already had those numbers. Psychology majors versus ua non-pysch majors: step 1: restate the question as a research hypothesis and a null hypothesis about the populations, question: is there a difference in hourly pay for. Psychology majors versus non-psyc majors: population 1: ua psychology majors, population 2: other ua majors (non-psyc majors, h0 = there is no difference in hourly pay between ua.