Random sample of size

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Suppose x has a distribution with μ = 15 and σ = 11.

(a) If a random sample of size n = 43 is drawn, find μxσ x and P(15 ≤ x ≤ 17). (Round σx to two decimal places and the probability to four decimal places.)μx =

σ x =

P(15 ≤ x ≤ 17) =

(b) If a random sample of size n = 74 is drawn, find μxσ x and P(15 ≤ x ≤ 17). (Round σ x to two decimal places and the probability to four decimal places.)μx =

σ x =

P(15 ≤ x ≤ 17) =

Reference no: EM132191898

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