What is the z-score of sample X, if n=144,mu=71,SD=12,and E[X]=77

firestopper53sh

firestopper53sh

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2022-08-22

What is the z-score of sample X, if n = 144 , μ = 71 , S t . D e v . = 12 , a n d   E X = 77

Answer & Explanation

Saige Roy

Saige Roy

Beginner2022-08-23Added 5 answers

= x μ σ n
Here, x=77, μ = 71, σ = 12, n-144
The z-score
= 77 71 12 144 = 6

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