1. Assignment for Chapter 5 (z-scores) For a sample with a standard deviation of s = 10, describe the location of each of the following z- scores in terms of its position relative to the mean. For example, z = +1.00 is a location that is 10 points above the mean. a. z = -1.50 b. z = +0.50 C. z = -2.00 d. z = +1.60 For a population with μ = 25 and σ = 10, find the z-score for each of the following X values. X = 32 2. a. b. X = 16 C. X = 22 d. X = 40 3. You receive your midterm exam scores for three classes. In all three classes, your midterm score was X 80. Below is the mean and standard deviation for each of your classes. Compute the z- score for each midterm exam score and summarize in words how you performed relative to the class. a. b. Class 1: Class 2: 85, 70,=5 2 C. Class 3: 76, σ = 4 Find the X value corresponding to z = 1.00 for each of the following populations. μ=42,σ =4 4. a. b. μ = 27, σ = 7 C. μ = 64,σ = 16 5. A sample with a mean of M = 100 and a standard deviation of s = 15 is transformed into a standardized distribution with u = 50 and σ = 10. Find the new, standardized score for each of the following values from the original sample. a. X = 88 b. X = 130 C. X = 112
1. Assignment for Chapter 5 (z-scores) For a sample with a standard deviation of s = 10, describe the location of each of the following z- scores in terms of its position relative to the mean. For example, z = +1.00 is a location that is 10 points above the mean. a. z = -1.50 b. z = +0.50 C. z = -2.00 d. z = +1.60 For a population with μ = 25 and σ = 10, find the z-score for each of the following X values. X = 32 2. a. b. X = 16 C. X = 22 d. X = 40 3. You receive your midterm exam scores for three classes. In all three classes, your midterm score was X 80. Below is the mean and standard deviation for each of your classes. Compute the z- score for each midterm exam score and summarize in words how you performed relative to the class. a. b. Class 1: Class 2: 85, 70,=5 2 C. Class 3: 76, σ = 4 Find the X value corresponding to z = 1.00 for each of the following populations. μ=42,σ =4 4. a. b. μ = 27, σ = 7 C. μ = 64,σ = 16 5. A sample with a mean of M = 100 and a standard deviation of s = 15 is transformed into a standardized distribution with u = 50 and σ = 10. Find the new, standardized score for each of the following values from the original sample. a. X = 88 b. X = 130 C. X = 112
Ciccarelli: Psychology_5 (5th Edition)
5th Edition
ISBN:9780134477961
Author:Saundra K. Ciccarelli, J. Noland White
Publisher:Saundra K. Ciccarelli, J. Noland White
Chapter1: The Science Of Psychology
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Assignment for Chapter 5 (z-scores)
For a sample with a standard deviation of s = 10, describe the location of each of the following z-
scores in terms of its position relative to the mean. For example, z = +1.00 is a location that is 10
points above the mean.
a.
z = -1.50
b.
z = +0.50
C.
z = -2.00
d.
z = +1.60
For a population with μ = 25 and σ = 10, find the z-score for each of the following X values.
X = 32
2.
a.
b.
X = 16
C.
X = 22
d.
X = 40
3.
You receive your midterm exam scores for three classes. In all three classes, your midterm score
was X 80. Below is the mean and standard deviation for each of your classes. Compute the z-
score for each midterm exam score and summarize in words how you performed relative to the
class.
a.
b.
Class 1:
Class 2:
85,
70,=5
2
C.
Class 3:
76, σ = 4
Find the X value corresponding to z = 1.00 for each of the following populations.
μ=42,σ =4
4.
a.
b.
μ = 27, σ = 7
C.
μ = 64,σ = 16
5.
A sample with a mean of M = 100 and a standard deviation of s = 15 is transformed into a
standardized distribution with u = 50 and σ = 10. Find the new, standardized score for each of
the following values from the original sample.
a.
X = 88
b.
X = 130
C.
X = 112
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