Imagine you are doing an Independent-Samples t-test.  For Sample 1, you get n=10, M=17.2, SS=120.  For Sample 2, you get n=12, M=19.1, SS=110.  What are the correct pooled variance, estimated standard error, and t-obtained?   Group of answer choices   Pooled variance = 11.50, estimated standard error = 1.45, t-obtained = -1.31 Pooled variance = 22.50, estimated standard error = 3.45, t-obtained = -1.31 Pooled variance = 11.50, estimated standard error = 3.45, t-obtained = +2.91 Pooled variance = 11.50, estimated standard error = 1.45, t-obtained =

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Imagine you are doing an Independent-Samples t-test.  For Sample 1, you get n=10, M=17.2, SS=120.  For Sample 2, you get n=12, M=19.1, SS=110.  What are the correct pooled variance, estimated standard error, and t-obtained?
 
Group of answer choices
 
Pooled variance = 11.50, estimated standard error = 1.45, t-obtained = -1.31
Pooled variance = 22.50, estimated standard error = 3.45, t-obtained = -1.31
Pooled variance = 11.50, estimated standard error = 3.45, t-obtained = +2.91
Pooled variance = 11.50, estimated standard error = 1.45, t-obtained = +2.91
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