Statistics Milestone 5 Exam / Questions with Certified Solutions. | 2025
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A ______ specifies the precise location of each X value within a distribution. - (answers)z-score
The sign of the ______ (+ or -) signifies whether the score is above the mean (positive) or below
the mean (negative). - (answers)z-score
The numerical value of the _______ specifies the distance from eh mean by counting the number
of standard deviations between X and μ. - (answers)z-score
Identify the z-score value corresponding to each of the following location sin a distribution.
a. Below the mean by 1 standard deviation.
b. Above the mean by 1.5 standard deviation.
c. Below the mean by 3/4 standard deviation. - (answers)a. z=-1.00
b. z=1.5
c. z=-0.75
For a population with μ=20 and σ=4, find the z-score for each of the following scores:
a. X=18
b. X=28
c. X=20 - (answers)a. z=-0.50
b. z=2.00
c. z=0
For a population with μ=60 and σ=20, find the X value corresponding to each of the following z-
scores:
a. z=-0.25
b. z=2.00
, c. z=0.50 - (answers)a. X=55
b. X=100
c. X=70
For a distribution with μ=40 and σ=8, find the z-score for each of the following scores.
a. X=36
b. X=46
c. X=56 - (answers)a. z=-0.50
b. z=0.75
c. z=2.00
For a distribution with μ=40 and σ=8, find the X value corresponding to each of the following z-
scores.
a. z=1.50
b. z=-1.25
c. z=0.50 - (answers)a. X=52
b. X=30
c. X=44
In a distribution with μ=50, a score of X=48 corresponds to z=-0.50. What is the standard
deviation for this distribution? - (answers)σ=4
In a distribution with σ=12, a score of X=56 corresponds to z=-0.50. What is the mean for this
distribution? - (answers)μ=62
A _______ is composed of scores that have been transformed to create predetermined values for
μ and σ. - (answers)standardized distribution
_______ are used to make dissimilar distributions comparable. - (answers)Standardized
distributions
LATEST UPDATED
A ______ specifies the precise location of each X value within a distribution. - (answers)z-score
The sign of the ______ (+ or -) signifies whether the score is above the mean (positive) or below
the mean (negative). - (answers)z-score
The numerical value of the _______ specifies the distance from eh mean by counting the number
of standard deviations between X and μ. - (answers)z-score
Identify the z-score value corresponding to each of the following location sin a distribution.
a. Below the mean by 1 standard deviation.
b. Above the mean by 1.5 standard deviation.
c. Below the mean by 3/4 standard deviation. - (answers)a. z=-1.00
b. z=1.5
c. z=-0.75
For a population with μ=20 and σ=4, find the z-score for each of the following scores:
a. X=18
b. X=28
c. X=20 - (answers)a. z=-0.50
b. z=2.00
c. z=0
For a population with μ=60 and σ=20, find the X value corresponding to each of the following z-
scores:
a. z=-0.25
b. z=2.00
, c. z=0.50 - (answers)a. X=55
b. X=100
c. X=70
For a distribution with μ=40 and σ=8, find the z-score for each of the following scores.
a. X=36
b. X=46
c. X=56 - (answers)a. z=-0.50
b. z=0.75
c. z=2.00
For a distribution with μ=40 and σ=8, find the X value corresponding to each of the following z-
scores.
a. z=1.50
b. z=-1.25
c. z=0.50 - (answers)a. X=52
b. X=30
c. X=44
In a distribution with μ=50, a score of X=48 corresponds to z=-0.50. What is the standard
deviation for this distribution? - (answers)σ=4
In a distribution with σ=12, a score of X=56 corresponds to z=-0.50. What is the mean for this
distribution? - (answers)μ=62
A _______ is composed of scores that have been transformed to create predetermined values for
μ and σ. - (answers)standardized distribution
_______ are used to make dissimilar distributions comparable. - (answers)Standardized
distributions
