Nonparametric Tests with Ordinal Data. Chapter 18. The sample data for the ordinal variable , accomplishment-related national pride, are skewed. This indicates the possibility that the underlying population distribution is skewed. . When both variables are ordinal Quantifies association

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Nonparametric Hypothesis tests. The approach to explore the small-sized sample and the unspecified population. Nonparametric problems. No proper distribution for hypothesis test Too small size to adopt the normality approximation

Chapter 8 nonparametric test. parameter test t test and F test. nonparametric test. The population distribution does not need strict supposition. range ：. Measurement data ： 1. The small sample data of non-normal distribution and homogeneity of variance ;

Hypothesis Test, HT. statistical inference xiaojinyu@seu.edu.cn. Statistical Inference. parameter estimation hypothesis test/ significance test. . Review on parameter estimation. CLT Sampling distribution of sample means CI for population mean. A Simulation Study.

Hypothesis Test: Independence . The table shows a random sample of 100 hikers and the area of hiking preferred. Are hiking area preference and gender independent? Hiking Preference Area . Hypothesis Test: Independence . H o : Gender and preferred hiking area are independent.

Hypothesis Test ing (Cont.). Null Hypothesis. Decision. True. False. Fail to reject. Type A correct decision. Type II error. H. o. Reject. H. Type I error. Type B correct decision. o. Hypothesis Test Outcomes. Type A correct decision: Null hypothesis true, decide in its favor.

Hypothesis test flow chart. χ 2 test for i ndependence (19.9) Table I. Test H 0 : r =0 (17.2) Table G . n umber of correlations. n umber of variables. f requency data. c orrelation (r). 1. 2. Measurement scale. 1. 2. b asic χ 2 test (19.5) Table I .

Hypothesis Test for Proportions. Z-Test for a Proportion p. Conditions. Random Sample. *Note AP uses. Standardized test statistic for a sample proportion. Same –O-Same-O Steps!. Assumptions State the null and alternative hypothesis and state the claim Identify the level of significance