# Suppose x has a distribution with μ = 18 and σ = 10.(a) If a random sample of size n = 37 is drawn, find μx, σ x and P(18 ≤ x ≤ 20). (Round σx to two decimal places and the probability to four decimal places.)μx =  σ x =  P(18 ≤ x ≤ 20) =  (b) If a random sample of size n = 68 is drawn, find μx, σ x and P(18 ≤ x ≤ 20). (Round σ x to two decimal places and the probability to four decimal places.)μx =  σ x =  P(18 ≤ x ≤ 20) =

Question
Asked Jun 25, 2019
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Suppose x has a distribution with μ = 18 and σ = 10.

(a) If a random sample of size n = 37 is drawn, find μx, σ x and P(18 ≤ x ≤ 20). (Round σx to two decimal places and the probability to four decimal places.)
 μx = σ x = P(18 ≤ x ≤ 20) =

(b) If a random sample of size n = 68 is drawn, find μx, σ x and P(18 ≤ x ≤ 20). (Round σ x to two decimal places and the probability to four decimal places.)
 μx = σ x = P(18 ≤ x ≤ 20) =
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## Expert Answer

Step 1

In this question, it has been given that X follows a distribution with mean 18 and standard deviation 10.

Step 2

Part a)

n = 37

Now, Probability P (18 ≤&nbs...

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