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Suppose we are drawing a sample of size 10 from a population X that is normally distributed with mean 5 and variance 1. We are

Suppose we are drawing a sample of size 10 from a population X that is normally distributed with mean 5 and variance 1. We are drawing a second sample of size 15 from a population Y that is normally distributed with mean 7 and variance 2. (You may need to revisit your combining RV notes or the properties of stat 324

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