If sample standard deviation is biased, why do we use it in typical mean tests?
70999
Why does this excerpt say that unbiased estimation of standard deviation usually isn't relevant?
39236
How can the confidence interval for standard deviation not include the sample standard deviation?
137654
Sample Standard Deviation vs. Population Standard Deviation
157199
Do we use the SD of whole population or SD of just one sample to calculate SE of samples means in central limit theorem?
145118
How does the proof of Rejection Sampling make sense?
19626
Is normality testing 'essentially useless'?
135276
T-test equal variances, unequal sample sizes
82605
Why are the number of false positives independent of sample size, if we use p-values to compare two independent datasets?
15078
When is a biased estimator preferable to unbiased one?
125189
When conducting a t-test why would one prefer to assume (or test for) equal variances rather than always use a Welch approximation of the df?
69458
Interpretation of Standard Deviation independent of the distribution?
85330
Why do we use residuals to test the assumptions on errors in regression?
54706
Testing symmetry of a distribution around its mean
133753
When does the amount of skew or prevalence of outliers make the median preferable to the mean?
9665
Proof of the independence of the sample mean and sample variance
132832
Why is it that when you add normally distributed random variables the variance gets larger but in the Central Limit Theorem it gets smaller?
128137
population and subsamples : mean equality?