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Chapter 4b. Basic statistical tests for inference

Chapter 4b. Basic statistical tests for inference - Basic...

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1 Basic statistical tests for inference
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2 Confidence interval Comparing means Assessing normality Relationship between 2 continuous variables Relationship between 2 categorical variables
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3 Statistical inference In addition to descriptive statistics, PROC UNIVARIATE generates output for inference such as: One sample t-test, sign-test and signed rank test; (the latter 2 tests can be regarded as non-parametric form of the one sample t-test) Confidence intervals for the mean and variance (assuming the underlying population is normally distributed) Formal tests for assessing whether the distribution is a normal distribution or not These are requested through the PROC UNIVARIATE statements options MU0, CIBASIC, ALPHA, NORMAL
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