Questions tagged [variance-test]

I have a variance test based outliers detection algorithm. The algorithm is exposed with a visual application where the user can configure its parameters namely the multiplier. The question is what is the range of values for the algorithm…

I have 40 "subjects", each of them did 5 types of exams. The question I wish to test is if there is a difference in variance between the exams. That is, I would like to run something like a "Bartlett's test", but for "repeated measures". Does such a…

Consider the case of two random variables obeying log-normal distributions. Suppose that the $\mu$ parameters are equal but the $\sigma$ parameters aren't. This would imply that not only the variances-, but the skewness and kurthosis, etc., would…

I am using an accelerometer to test for vibration. To clarify the physics, imagine an accelerometer (which measures acceleration) is sitting on top of a washing machine. On the spin cycle the accelerometer will move up and down, giving a…