SOLUTION: A normal distribution has μ = 30 and σ = 5. (a) Find the z score corresponding to x = 25. (b) Find the z score corresponding to x = 43. (c) F

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Question 1124128: A normal distribution has μ = 30 and σ = 5.
(a) Find the z score corresponding to
x = 25.



(b) Find the z score corresponding to
x = 43.



(c) Find the raw score corresponding to
z = −3.



(d) Find the raw score corresponding to
z = 1.1.
Answer by MathLover1(20850) About Me  (Show Source):
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(a) Find the z score corresponding to
x = 25.
Z = (X - μ) / σ
Z = (25 - 30) / 5
Z = -1

(b) Find the z score corresponding to
x = 43.

Z = (X - μ) / σ
Z = (43 - 30) / 5
Z = 2.6

(c) Find the raw score corresponding to
z+=+-3.
raw value of X?
Z = (X - μ) / σ
-3 = (X - 30) / 5
-15=X - 30
30-15=X
X=15

(d) Find the raw score corresponding to
z = 1.1
Z = (X - μ) / σ
1.1 = (X - 30) / 5
1.1*5=X - 30
30+5.5=X
X=35.5