Posted by jericho on .
supposed that the average weight loss for someone on a diet is 15 pounds with the standard deviation of 4 pounds.
a sample of 18 adults enrolled a sswp have a mean weight loss of 15.83.
using 0.01 level of significance.

statistics 
PsyDAG,
I don't know what "a sswp" is.
Use process in response to your previous post.