reopening Estimated standard deviations calculation

[talrub]

Hi,
I am sorry for reopening this issue but something in your calculation of standard deviation of the estimated mean looks odd to me.
From my understanding, for each combination of (num_train_samples, loss_bin) you calculate 's' using 175 test accuracies that you found during the run.
Why do you calculate 's_mean' and treats it like the standard deviation of the estimated mean?
Is 's' not the result we are looking for?

Thanks!

Originally posted by @talrub in #4 (comment)