Please help. I need to know how to find t* on the C table, if all I have is the degrees of freedom.?

Okay,


I understand how to set up a two sample t-hypothesis test.





I am confused however how to find t* on the C table.





Also, I need t* to plug into my formula for Confidence Intervals between two samples, how do I find this. Basically I need help, step by step on how to use the C table.

Please help. I need to know how to find t* on the C table, if all I have is the degrees of freedom.?
You usually need to know some other piece of information like the confidence level you are trying to find. Say you are looking for a 90% confidence level, find the number corresponding to you degrees of freedom. Then you just plug that number into the confidence interval equation.