CW_Chap 3_Summer_2016
Multiple Choice
Identify the choice that best completes the statement or answers the question.
_
1. What is the mean for the following sample of scores? Scores: 1, 4, 5, 6
A. 16 B. 8 C. 4.5 D. 4
_
2. What is the mean for the followin

CW Chap 1 and 2 Psyc 203 Summer 2016
Multiple Choice
Identify the choice that best completes the statement or answers the question.
_
1. A researcher uses an anonymous survey to investigate the television-viewing habits of American
adolescents. The entire

Statistics Review
Statistical Procedures
1. Descriptive
2. Inferential
Descriptive Statistical
Procedures
1. Measures of Central Tendency
a. Mean
b. Median
c. Mode
2. Measures of Variability
d.
e.
f.
g.
h.
i.
Variance
Standard Deviation
Percentiles
Range

Psychology 204
01/19/2017
Statistics Review
Statistical procedures
1. Descriptive- Describes numbers in data. Sees the big picture
2. Inferential- Takes numbers and makes use of them to make
predictions.
Descriptive statistical procedures
1. Measures o

PSYC 204
Chapter 5: Variables & Measurement
Conceptual vs. Operational
Definitions
Conceptual definition meaning of the
variable more abstractly or generally
Operational definition how the variable is
measured or observed
* more objective and specific the

Name:
Exam 2
Stat 302-507
Form A
Directions:
Please DO put your UIN on your scantron!
Dont open this until you are told to do so.
Remember to turn your phone off now.
You have 50 minutes to finish this exam.
You may use your cheat sheet, all appropri

Practice problems for the final exam
This practice exam is not meant to cover every possible problem you will see on your final exam. It focuses
mostly on new material. Your final is cumulative.
_
True/False Section
Part A: Which of the following statemen

Name:
Exam 1
Stat 302-507
Directions:
Dont open this until you are told to do so.
Remember to turn your phone off now.
You have 50 minutes to finish this exam.
You may use your cheat sheet, all appropriate tables, and a calculator.
Make sure you have

Stat.
Standard
Deviation
Param.
Standard
Error
Confidence Interval:
Statistic (critical value) (standard error)
# successes and #failures both 15
z-Score
0.90
1.645
^p 1.645(se)
0.95
0.05
1.96
^p 1.96( se)
0.99
0.01
2.576
^p 2.576(se)
n 30 or data normal

Solutions to practice problems for the final
True/False Section:
Part A:
1.) True
2.) True
3.) False (Hypothesis tests cant find evidence for the null hypothesis; they only fail to find evidence for the alternative.)
Part B:
4.) False
5.) True
6.) True
7.

CW Psyc 203 Chap 4 Summer 2016
Multiple Choice
Identify the choice that best completes the statement or answers the question.
_
1. Which of the following is a consequence of increasing variability?
A. The distance from one score to another tends to increa

CW Chap 5 Psyc 203 Summer 2016
Multiple Choice
Identify the choice that best completes the statement or answers the question.
_
1. What position in the distribution corresponds to a z-score of z = 1.00?
A. Below the mean by 1 point B. Below the mean by a

Chap 3 CW Solutions
2. The mean is 32/8 = 4, the median is 4.5, and the mode is 5.
14. The original population has N = 15 and X = 120. The new population has N = 15 and X = 105.
The new mean is = 7.
18. The original sample has n = 9 and X = 117. The new s

Chapter 1 CW Solutions
4. Sampling error is the naturally occurring difference between a sample and the
population from which the sample is obtained. Specifically, the statistics obtained for a
sample will be different from the corresponding parameters fo

CW Chap 5 sect 5 & 6 and Chap 6
Multiple Choice
Identify the choice that best completes the statement or answers the question.
_
1. For a sample with M = 50 and s = 12, what is the X value corresponding to z = 0.25?
A. 47 B. 53 C. 46 D. 54
_
2. For a samp

CW Chap 5, sect. 5 and 6 Summer 2016
Multiple Choice
Identify the choice that best completes the statement or answers the question.
_
1. For a sample with M = 50 and s = 12, what is the X value corresponding to z = 0.25?
A. 47 B. 53 C. 46 D. 54
_
2. A sam

Chap 2 CW Solutions
8. A regular table reports the exact frequency for each category on the scale of measurement. After the
categories have been grouped into class intervals, the table reports only the overall frequency for the
interval but does not indic

CW_Chap 3_Summer_2016
Multiple Choice
Identify the choice that best completes the statement or answers the question.
_
1. What is the mean for the following sample of scores? Scores: 1, 4, 5, 6
A. 16 B. 8 C. 4.5 D. 4
_
2. What is the mean for the followin