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Suppose we sample 4 values from an unknown normaldistribution (we know it's normal, but we don't know its mean and standard deviation): 2, 4, 8,

Suppose we sample 4 values from an unknown normaldistribution (we know it's normal, but we don't know its mean and standard deviation): 2, 4, 8, 8. Calculate the lower bound (i.e. the xbar - s value) for a 68% tolerance interval. Do not round any of your values.

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