SOC222H5 Lecture Notes - Lecture 6: Standard Score, Standard Error, Standard Deviation
Document Summary
Session #6 inferential stats ii: significance & confid. 6, 7 samples populations standard error sampling error sampling distribution. Terms to know confidence interval mu ( ) t-curve normal curve statistical significance significance level research hypothesis null hypothesis type i error type ii error degrees of freedom. Does not say or ask anything about size or strength of a relationship. Hypothesis testing: a research question, do students who study more hours achieve higher grades, a research hypothesis, hypothesis: students who study more hours achieve higher grades. Logically, it is very difficult to show something is true- cant test all swans in the world(all swans are white) So instead its easier to prove the opposite- no swans are not white. Eg: research hypothesis, x and y are related. : students who study more hours achieve higher grades: null hypothesis, x and y are not related. : students who study more hours do not achieve higher grades.
