Question: please help me with this statistics problem 5. Let X1, ..., Xn be a random sample from the Normal (u, 2) distribution with sample mean

please help me with this statistics problem

5. Let X1, ..., Xn be a random sample from the Normal (u, 2) distribution with sample mean Xn and sample SD = Sn-1. Let Xn+1 be a future observation from the same population. Find the distribution of W = Xn+1-X Sn-1

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