# Basic T stat question

I missed this on a quiz and wanted to know if somone could explain it to me so i understand it for the final! thanks. I know its probably a really simple quesitons.

With a coefficient estimate of .8, 30 observations, and a t statistic of 4.00, whats the standard error?

• Welcome to CV! We have a specific policy on self study questions. Please edit your question with the button below it and include the self-study tag. – Frans Rodenburg Oct 10 '19 at 5:34

Consider the general formula for a $$t$$-test:
$$t = \frac{\text{difference}}{\text{standard error}}$$
$$\text{standard error} = \frac{\text{standard deviation}}{\sqrt{\text{sample size}}}$$