Question: Consider taking random samples of size 50 from Population A with mean 15 and standard deviation 3 and random samples of size 75 from Population

Consider taking random samples of size 50 from Population A with mean 15 and standard deviation 3 and random samples of size 75 from Population B with mean 10 and standard deviation 5. How many degrees of freedom should be used when conducting inference for Mu A - Mu B with samples of this size?

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