T test statistics

Statistical methods are of two types: Descriptive Method: This method uses graphs and numerical summaries. Inferential Method: This method uses confidence interval and significance test which are part of applied statistics. # What is statistical analysis # Statistical Analysis # Simple Statistical Analysis # Statistical Data Analysis # Statistical Analysis: Definition, Examples # 5 Most Important Methods For Statistical Data Analysis # Basic statistical tools in research and data analysis

Rules for statistical tests

Differences Between Z-Test and T-Test Z-test is the statistical hypothesis used to determine whether the two samples' means calculated are different if

CORRECTION AT 8:51: in the chart, 'Wilcoxon' and 'Mann Whitney' should be switched. Wilcoxon is the non-parametric version of the PAIRED t-test (not unpaired...

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One-sample t-test

How do I know when to use the t-test instead of the z-test? Just about every statistics student I've ever tutored has asked me this question at some point. When I first started tutoring I'd explain that it depends on the problem, and start rambling on about the central limit t...

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Various flowcharts to help select the appropriate statistical test for various types of data. Hypothesis Testing Flowchart.

One of the more confusing things when beginning to study stats is the variety of available test statistics. You have the options of z-score, t-statistic, f-statistic, and chi-squared, and it’s easy…