State the degrees of freedom and explain how you calculated

it by hand. Can you show the information in this formula? I cant seem to get this question. Data set and formula below.

Pooled variance = (n1-1) estimated variance condtion 1 + (n2-1)  estimated variance condtion 2/(n1-1) + (n2-1)

Data set 1 0.82, 0.84, 0.76, 0.9, 0.66, 0.86, 0.72, 0.86, 0.86, 0.74, 0.77, 0.93, 0.9, 0.88, 0.84
Data set 2 0.7, 0.7, 0.82, 0.81, 0.8, 0.72, 0.7, 0.78, 0.83, 0.8, 0.71, 0.79, 0.72, 0.84,0.85

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