Question: Suppose n = 25, = 5, and = 5. Assume normality and determine (a) P(X 4), (b) P(X > 7), (c) P(3

Suppose n = 25, σ = 5, and μ = 5.

Assume normality and determine (a)

P(X¯ ≤ 4),

(b) P(X¯ > 7),

(c) P(3 ≤ X¯ ≤ 7).

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