You are dealing with two populations that have means mu1 and

You are dealing with two populations that have means mu1 and mu2. The two populations have the same variance sigma^2. A random sample of size 10 from the first population resulted in a sample variance of 36. A random sample of size 12 from the second population resulted in a sample variance of 25. You are asked to find the best possible estimate of sigma^2. What would be your estimate?

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