Perform the indicated operations and simplify. 
Definitions:
T Value
A measure derived in a t-test that shows the size of the difference relative to the variation in your sample data.
T Test
A statistical hypothesis test used to determine if there is a significant difference between the means of two variables.
Two Groups
A basic experimental design involving comparison between two distinct or independent sets of subjects or conditions to determine differences or effects.
Standard Deviation
A measure of the amount of variation or dispersion of a set of values, indicating how much the values differ from the mean.
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