A message from our CEO about the future of Stack Overflow and Stack Exchange. Read now.

# Questions tagged [standard-error]

Refers to the standard deviation of the sampling distribution of a statistic calculated from a sample. Standard errors are often required when forming confidence intervals or testing hypotheses about the population from which the statistic was sampled.

1,096 questions
Filter by
Sorted by
Tagged with
20 views

### Standard deviation of sample proportions (standard error) in R

This resource states that the standard deviation of the sampling distribution (the standard error) is equal to: They provide an example where a population has p=0.6 and samples of n=25 are drawn from ...
34 views

### Error bars in a population and subtracting two populations with different error bars

Suppose I want to measure a physical quantity. Let's say that $N$ trials were performed each with individual outcome $x_i,\quad i\in (1,N)$. Then obviously the outcome of the experiment would be the ...
42 views

### Is the algorithm of calculating SEs of beta coefficients calculated by the nlme gls finally fixed?

I can read here: https://www4.stat.ncsu.edu/~davidian/st732/examples/dental_pa.R and here: https://math.unm.edu/~luyan/stat57918/week14.pdf that: WARNING: There is a MISTAKE in gls(), and it DOES ...
17 views

### Standard error in estimated marginal means are all the same

I use the package emmeans to calculate estimated marginal means and I don't know why the standard errors are equal within the factors: ...
13 views

### Interpreting standard errors of linear regression with logged dependent variable

I'm running a linear regression with a logged dependent variable. This is the only variable in the model that is logged. For interpretation, I've exponentiated the coefficients, subtracted one, and ...
12 views

### How is standard error of regression coefficient calculated (quadratic and logit)?

I was wondering what formula is used to calculate the standard error of quadratic and logit regression coefficients. I don't have much knowledge on statistics and I have had trouble finding sources ...
17 views

### why there different standard error form in Hypothesis testing

In Hypothesis testing,Comparison of a sample mean with an assigned population mean: $$Z=\frac{\overline x-\mu_0}{\frac{\sigma}{\sqrt n}}\text{ Or }Z=\frac{\overline x-\mu_0}{\frac{s}{\sqrt n}}$$ But ...