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Suppose x has a distribution with μ = 16 and σ = 10. (a) If a...

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Statistics

Suppose x has a distribution with μ = 16 and σ = 10.

(a) If a random sample of size n = 45 is drawn, find μx, σ x andP(16 ≤ x ≤ 18). (Round σx to two decimal places and the probabilityto four decimal places.)

μx =

σ x =

P(16 ≤ x ≤ 18) =

(b) If a random sample of size n = 72 is drawn, find μx, σ x andP(16 ≤ x ≤ 18). (Round σ x to two decimal places and theprobability to four decimal places.)

μx =

σ x =

P(16 ≤ x ≤ 18) =

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