6.31 A random sample of n = 100 observations is selected from a population with μ = 31 and o = 25. a. Find Mx and ox. b.

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6.31 A random sample of n = 100 observations is selected from a population with μ = 31 and o = 25. a. Find Mx and ox. b.

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6.31 A random sample of n = 100 observations is selected from a population with μ = 31 and o = 25. a. Find Mx and ox. b. Describe the shape of the sampling distribution of x. c. Find P(x ≥ 28).
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