Hi everyone, I just had a question for all you math wizards. I want to calculate a 90% confident interval for my hourly (I vaguely remember my stats classes).
Hourly: x (/hour)
Standard Deviation: y (/hour)
# of hours: n

Can someone please provide me with a formula to calculate my confidence interval? Before anyone says you can calculate it using pokertracker/HEM, I keep track of my numbers using an excel sheet (I am tracking live poker results)

Mods: I have not posted on pokerstrategy in a while so sorry if this is in the wrong section. Feel free to move it if you feel that would be appropriate.