If one sample has n=25 scores with ss=100 and a second has n=20 scores with ss=120, then the pooled variance will be 220/45. True or false?
Added by Alexis M.
Step 1
Step 1:** Calculate the pooled variance using the formula for pooled variance: \[ \text{Pooled Variance} = \frac{SS_1 + SS_2}{n_1 + n_2 - 2} \] ** Show more…
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