Question

Can someone give me the formula to work this out, I am not sure.
Find the value of t for the difference between two means based on an assumption of normality and this information about two samples. (Use sample 1 - sample 2. Give your answer correct to two decimal places.)

Sample Number Mean Std. Dev.
1 25 38.6 13.7
2 29 42.1 10.2

Answer 1

t = -1.07

Answer 2

this is not right can you explain how to get the right answer by working it out. there is a few of us working together and we all have different problems so it helps to see it worked out.