old memories/physics

t distribution and GSL random number generatorold memories/physics 2007.07.02 22:57
t distribution with large degrees of freedom is the same as Normal (Gaussian) distribution with mean 0 and standard devitation 1 approximately.normal[x_] := PDF[NormalDistribution[0, 1], x]t[x_, nu_] := PDF[StudentTDistribution[nu]], x]Plot[{normal[x], ..

Confidence Interval and Prediction Intervalold memories/physics 2007.06.20 06:35
Confidence Interval (CI)describes the uncertainty in $\bar Y$ as an estimate of $\mu$, where $\bar Y$ is the sample mean and $\mu$ the population(true) mean95% CI means that the true mean value will be inside this interval with 95% probabilitySuppose re..

Toleranceold memories/physics 2006.11.08 00:35
How do I make something exactly? This is a very difficult question. Before studying experimental physics, I have never thought about a tolerance. But, after studying, I realized it is so important to make a sort of decision. In the CAD world, everything..