standard error of mean

[Muddy]

if I have a single data point how can I estimate the standard error of the mean?

[Rassis]

You just can´t. It takes at least two points to calculate the standard deviation "s" which you need to calculate the standard error "n/sqrt(n)" where "n" stands for number of observations.

[Muddy]

You just can´t. It takes at least two points to calculate the standard deviation "s" which you need to calculate the standard error "n/sqrt(n)" where "n" stands for number of observations.

Thanks ...

Might a bootstrap method work?

[Rassis]

There is a mistake in the formula I wrote in my previous post. It should be "s/sqrt(n)" instead of "n/sqrt(n)". I am so sorry.

Rui