311 - Test 1 Comprehensive Resource To Help You Ace 2026-
2027 Exams Includes Frequently Tested Questions With
Elaborated 100% Correct Complete Solutions
Guaranteed Pass First Attempt!! Current Update!!
1. What is the value of SS for the following set of scores? Scores: 0, 1, 4, 5
A. 17
B. 18
C. 42
D. Cannot answer without knowing whether it is a sample of a population - CORRECT ANSWER
A. 17
2. Which of the following actions will have no effect on the value of the standard deviation?
A. Multiply each score in the distribution by 2
B. Divide each score in the distribution by 2
C. Subtract 5 points from every score in the distribution
D. All of the other actions will change the vale of the standard deviation - CORRECT ANSWER C.
Subtract 5 points from every score in the distribution
3. For a population with μ= 70 and σ= 8, what is the z-score corresponding to X= 82?
A. +0.25
B. +0.75
C. +1.25
D. +1.50 - CORRECT ANSWER D. +1.50
, 4. A distribution of μ= 35 and σ= 8 is being standardized so that the new mean and standard
deviation will be μ= 50 and σ= 10. In the new, standardized distribution, your score is X= 45.
What was your score in the original distribution?
A. X= 30
B. X= 31
C. X= 39
D. X= 45 - CORRECT ANSWER B. X= 31
5. What proportion of normal distribution is located between z= -1.50 and z= +1.50?
A. 0.9332
B. 0.668
C. 0.4332
D. 0.8664 - CORRECT ANSWER D. 0.8664
6. A normal distribution has a mean of μ= 24 with σ= 3. What is the minimum score needed to
be in the top 14% of the distribution?
A. X= 24.42
B. X= 25.08
C. X= 27.24
D. X= 20.76 - CORRECT ANSWER C. 27.24
7. A sample of n= 16 scores is selected from a population with μ= 80 and σ= 20. On average,
how much error would be expected between the sample mean and the population mean?
A. 20 points
B. 5 points
C. 4 points
D. 1.25 points - CORRECT ANSWER B. 5 points
2027 Exams Includes Frequently Tested Questions With
Elaborated 100% Correct Complete Solutions
Guaranteed Pass First Attempt!! Current Update!!
1. What is the value of SS for the following set of scores? Scores: 0, 1, 4, 5
A. 17
B. 18
C. 42
D. Cannot answer without knowing whether it is a sample of a population - CORRECT ANSWER
A. 17
2. Which of the following actions will have no effect on the value of the standard deviation?
A. Multiply each score in the distribution by 2
B. Divide each score in the distribution by 2
C. Subtract 5 points from every score in the distribution
D. All of the other actions will change the vale of the standard deviation - CORRECT ANSWER C.
Subtract 5 points from every score in the distribution
3. For a population with μ= 70 and σ= 8, what is the z-score corresponding to X= 82?
A. +0.25
B. +0.75
C. +1.25
D. +1.50 - CORRECT ANSWER D. +1.50
, 4. A distribution of μ= 35 and σ= 8 is being standardized so that the new mean and standard
deviation will be μ= 50 and σ= 10. In the new, standardized distribution, your score is X= 45.
What was your score in the original distribution?
A. X= 30
B. X= 31
C. X= 39
D. X= 45 - CORRECT ANSWER B. X= 31
5. What proportion of normal distribution is located between z= -1.50 and z= +1.50?
A. 0.9332
B. 0.668
C. 0.4332
D. 0.8664 - CORRECT ANSWER D. 0.8664
6. A normal distribution has a mean of μ= 24 with σ= 3. What is the minimum score needed to
be in the top 14% of the distribution?
A. X= 24.42
B. X= 25.08
C. X= 27.24
D. X= 20.76 - CORRECT ANSWER C. 27.24
7. A sample of n= 16 scores is selected from a population with μ= 80 and σ= 20. On average,
how much error would be expected between the sample mean and the population mean?
A. 20 points
B. 5 points
C. 4 points
D. 1.25 points - CORRECT ANSWER B. 5 points
