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The only difference a set of t tests and the Fisher's LSD test, is that t tests compute the pooled SD from only the two groups being compared.
https://www.graphpad.com/guides/prism/latest/statistics/
You've measured a variable in one group, and the means (or median) is not the same as expected by theory (or by the null hypothesis). Is that due to chance?
https://www.graphpad.com/guides/prism/latest/statistics/
Prism offers the nested t test. We chose that name because it best describes the use of this test. You want to compare two treatment groups.
https://www.graphpad.com/guides/prism/latest/statistics/
The unpaired t test compares the means of two groups. Note that this test is often called independent samples t test. The most useful result is the confidence ...
https://www.graphpad.com/guides/prism/latest/statistics/
Prism 8 offers a new kind of data table for nested data where values stacked in each subcolumn are related, and creates subcolumn graphs of these data.
https://www.graphpad.com/guides/prism/latest/user-guide/
Why residuals? Prism provides four ways to plot residuals with t tests, provided that you entered raw data and not averaged data as mean, n and SD or SEM.
https://www.graphpad.com/guides/prism/latest/statistics/
The t test (and ANOVA) work by subtracting one from the entered value of N, and uses that difference as the number of degrees of freedom. When comparing results ...
GraphPad FAQs
A one-sample ratio t test compares the geometric mean of a single column of numbers against a hypothetical geometric mean that you provide.
https://www.graphpad.com/guides/prism/latest/statistics/
What is a volcano plot? When you run multiple t tests, Prism (starting with version 8) automatically creates what is known as a volcano plot.
https://www.graphpad.com/guides/prism/latest/statistics/
Feb 26, 2019 ... How to check the analysis assumptions and choose what type of t test to use. LENGTH. 10 minutes. Analyze, graph and present your scientific ...
https://www.graphpad.com/series/
