Questions tagged [t-distribution]

t is the distribution of the t-statistic that results from a t-test. Use this tag only for questions about the distribution; use [t-test] for questions about the test.

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name for distribution of sample mean before standardization to t-distribution [closed]

I’m re-learning a very basic statistics of standard error of mean. When population variance is known, the distribution of sample mean is normal distribution, according to the central limit theorem. On ...
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The distribution of the square of a Student's t-distributed random variable

The following may not be very difficult, but I'm struggling to get started. $T_k = \frac{Z_0}{\sqrt{\frac{1}{k}(Z_1^2 + \dots + Z_k^2)}}$, where $Z_0, \dots$ are i.i.d. standard normal random ...
• 345
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Calculating confidence intervals for coefficients in ordinal logistic regression

I've fitted an ordinal logistic regression model in R using MASS::polr and I am looking to compute confidence intervals for the fitted coefficients. Here is the (...
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