The compressive strength of concrete is normally distributed with u = 2200 psi and o? = 50 psi. Find the probability that a random sample of n = 10 specimens will have a sample mean diameter that falls in the interval from 2198 psi to 2203 psi. If we increase our sample size, would this increase the probability that our sample mean will be between the interval? Explain and include your solutions.

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