OT 600: Final Exam Questions & Answers 100% Correct!!

What is the difference between parametric statistics and nonparametric statistics? - ANSWERS-parametric: normal population with homogeneity of variance, and interval or ratio level data -nonparametric: not normal population with no homogeneity of variance, and nominal or ordinal level data Typically, the dependent variables are __________ or __________ level data in nonparametric statistics, with a sample size ____________ 30. - ANSWERSnominal, ordinal, less than When would you use nonparametric statistics for interval or ratio level data? - ANSWERSif the normalcy of the population cannot be assumed, and if there is no homogeneity of variance T/F: Nonparametric statistics test hypothesis, use test statistics, and use associated probabilities. - ANSWERST What are three indications for when nonparametric statistics should be used? - ANSWERS1. if a variable has not been researched enough to assume normalcy and homogeneity 2. with a small sample 3. with nominal or ordinal level data Why are parametric statistics "better" to run than nonparametric statistics, if possible? - ANSWERSnonparametric statistics are not as powerful, AKA they are less likely to be able to find a statistically significant difference What is nominal and ordinal level data characterized as? - ANSWERScategorical level data When should a Chi Square test be used? - ANSWERSonly if the researcher is concerned if a statistically significant difference exists, and they have collected nominal or ordinal level data What is a Chi Square test? - ANSWERSa nonparametric test that determines if there is a difference in member distribution among two or more categories What test statistics are reported in a Chi Square test? - ANSWERSX^2, df, p-value How are df calculated in a One-Way Chi Square test? How are df calculated in a Two-Way Chi Square test? - ANSWERS-One-Way: N - 1 -Two-Way: (number of rows - 1)(number of columns - 1)