PADP 7110 Lecture Notes - Lecture 5: Type I And Type Ii Errors, Multivariate Analysis, Null Hypothesis

• School: University of Georgia
• Department: Public Administration and Policy
• Course: PADP 7110
• Professor: Abraham

Document Summary

Univariate statistics: summarize information about the average value or a variable. Mode: category or score with the largest frequency (or percent) in the distribution. Median: score that divides the distribution into two equal parts so that half are above it and half are below it. Range: difference between the highest & the lowest values in a distribution. Standard deviation: square root of the variance. Bivariate statistics: describe the relationship between two variables. T-test > test statistic computed for determining the difference between two means. Null hypothesis = difference between the means is 0. Measure of association between two continuous variables. Padp 7710 - research methods of public administration. Ranges from -1 to 1 (greater the absolute value of the coefficients, the stronger the linear relationship) Positive correlation = as one variable increases, the other variables increase. Negative correlation = as one variable increases, the other variable decreases. Simple regression & multivariate analysis: regression analysis.