Question: One sample from an independent-measures study has n = 4 with SS = 100. The other sample has n = 8 and SS = 140.

One sample from an independent-measures study has n = 4 with SS = 100.

The other sample has n = 8 and SS = 140.

What is the pooled variance?

a. 53.33

b. 42.5

c. 24

d. 20

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