# Questions tagged [estimation]

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### Formulae to Convert between z Critical Value and Confidence Level [duplicate]

What are the two formulae to convert between the two? For example, I have a z critical value of 3.00. With what formula can you convert this to ...
7 views

### What's the meaning of estimator standardization?

Just to give some context: Two different types of alloy (named here A and B) are used to manufacture experimental specimens of a small tension link to be used in a certain engineering ...
8 views

### Posterior of risk ratio as ratio of samples from posteriors of risks

I want to sample from the posterior distribution of a risk ratio. My idea is: define the posterior of risks $R_A$ and $R_B$) for two subgroups (e.g, exposed and non-exposed) in my data, using Beta(1....
5 views

### In SPSS, how to obtain a single prediction of the dependent variable for each fixed factor, rather than for each random factor combination?

I have a number of thing-types X and for each type want to obtain a single estimate of its true value Y. When I have measured the same thing-type several times in the same session and several times ...
32 views

### Parameter Estimation via MCMC

In general, we use MCMC method to sample from a distribution which is hard to compute. In Bayesian setting, we sample from the posterior distribution of the random parameters defining the underlying ...
39 views

### Finding Average Wait Time From Number of People Waiting

Problem: We are trying to estimate the average wait time for a process. Only data we have is how many people are in the system at a given time, how many have entered this period, how many exited this ...
17 views

### MAP, MLE and parametrised data

It is often said that maximum likelihood is used to obtain estimates of distrubtion's parameters. However, what is unclear is whether it will produce consistent estimate parameters other than those of ...
12 views

### constract a 95% confidence interval and deter mine lower and upper limit [closed]

suppose for the entertainment indusrty as a whole it is known that the variance of wages for full time employees are birr 1764 per hour a random sample of 196 employees frm entertainment industry ...
58 views

### Classification vs. Prediction

Recently there has been much discussion of the distinction between classification and prediction. The main claim as I understand it is that prediction must be a probability - specifically $E[Y|X=x]$, ...
24 views

### Standard deviation in Direct-Sampling

In a computational physics course, I was asked to do direct-sampling for the numerical value of $\pi$ and then I estimated the standard deviation of $\pi$ , ...
12 views

### Statistical method for estimation of Penetrance

I was thinking on a problem: there is a rare disease, associated with some ultra-rare genomic variant (which means ~ 1 out of millions), and there are estimations of penetrance (how many individuals ...
I cannot seem to figure out how rugarch calculates the parameter $\mu$ when fitting a specific model For example: ...