What is the z-score of sample X, if n=36,mu=12.3,St Dev=47,and mu_X=18.5

abelynybco 2022-10-08 Answered
What is the z-score of sample X, if n = 36 ,   μ = 12.3 ,   St.Dev = 47 ,   μ X = 18.5?
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Answers (1)

Jase Powell
Answered 2022-10-09 Author has 11 answers
Given
n = 36 μ = 12.3 St.Dev = 47 μ X = 18.5
Find the Standard Error
S E = σ n = 47 36 = 7.8
Find the z-score
z = 18.5 12.3 7.8 = 0.79
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