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1 vote
0 answers
26 views

Probability that both the mean and sample variance are both covered by their respective confidence intervals?

I am given the question: "What is the probability that both the mean is in its confidence interval for confidence level a and the variance is in its confidence interval for confidence level a?&...
user386465's user avatar
2 votes
1 answer
205 views

Can the variance of a U-statistic be of the order $O(\frac{1}{n^2})$?

It is not that easy to find estimators $T_n$ such that $\mbox{Var}[T_n] \sim O(n^{-B})$ with $B = 2$. In most cases, $B=1$.Here $n$ is the sample size. It seems, according to this paper on U-...
Vincent Granville's user avatar
1 vote
0 answers
87 views

What are meaningful ways to interpret Monte Carlo-simulated non-normal data?

My question relates to Confidence Interval (CI) calculation of Monte Carlo-simulated non-normal data As answers and comments to that question show the confidence interval for the given distribution ...
ye-ti-800's user avatar
  • 113
2 votes
1 answer
126 views

Calculating the error or variance in $p$ when fitting a binomial distribution to data

I have data fitting a binomial distribution with $n$ total observations and m positive observations. My estimate of $p$ is $\frac{m}{n}$, but is there a way I can estimate the error or variance in $p$?...
Jautis's user avatar
  • 628
28 votes
3 answers
4k views

Confidence Interval for variance given one observation

This is a problem from the "7th Kolmogorov Student Olympiad in Probability Theory": Given one observation $X$ from a $\operatorname{Normal}(\mu,\sigma^2)$ distribution with both parameters unknown, ...
Jonathan Christensen's user avatar