Hello,

I'm introducing psychology students to Jamovi. They have to use the free book "Learning statistics with jamovi".

When they follow the tutorial page 250 for one sample t test, they don't have the same results as mentionned in the book.

They obtain some strange results about confidence interval. I try myself and I have the same issue : the IC don't contain the sample mean. I looks like the calculating IC is not the mean IC (see screenshot attach).

Can you explain me if we're doing something wrong ?

Thanks a lot for your answers.