What is the T-Test formula?

Answer 1

t= absolute value of ( sample 1 - sample two) THEN DIVIDED by the (standard error of sample one - standard error of sample 2)

standard error = the standard deviation divided by (square root of the pop. sample number)

You have to work in steps to get all info

1. mean ( REPRESENTED BY 'Xbar') 2. sum of squares ('SS') 3. Sample variance ('s^2') 4. standard deviation ('s') 5. standard error ('s subscript x') 6. pooled measure ('s^2p') 7. Standard error between means (s subscript mean one-mean two) 8. t test

In other word finding the mean and having ht esample info leads you to each formula with the end formular being the t-test

have fun, its easy but dumb