Introduction to Statistics for the Social Sciences
SOC 200

Fall 2012
Chapter
Chapter 3: Graphic Presentation: Quiz
1.A histogram is commonly used for continuous variables.
True  Correct!
False
2.The histogram is the next best alternative for displaying information about nominal
variables.
True
False  Correct!
3.In a pie
Introduction to Statistics for the Social Sciences
SOC 200

Fall 2012
Chapter 2: Organization of Information: Frequency Distributions:
Quiz
1.A percentage distribution is a type of relative frequency distribution.
True  Correct!
False
2.The sum of all proportions in a frequency distribution for a single variable of interes
Introduction to Statistics for the Social Sciences
SOC 200

Fall 2012
Chapter 5: Measures of Variability: Quiz
1.Suppose you are interested in comparing the amount of variability in the variety of
religious establishment in Idaho and California. An appropriate measure of variability to
assist you in doing so is the index of
Introduction to Statistics for the Social Sciences
SOC 200

Fall 2012
Chapter 4: Measures of Central Tendency: Quiz
1.Each of the following in a measure of central tendency: the mode, the median, and the
mean.
True  Correct!
False
2.The median is the appropriate measure of central tendency for nominal level variables.
True
Introduction to Statistics for the Social Sciences
SOC 200

Fall 2012
Chapters 10 review: Relationships between Variables & Chi Square
Parts of a Bivariate Table
Independent Variable
Dependent Variable
Cells
Row Marginals
Column Marginals
Calculating Percentages in a Bivariate Table
Cell divided by column marginal, *100
= c
Introduction to Statistics for the Social Sciences
SOC 200

Fall 2012
Difference between sample / population: Z test
Z statistic can be calculated based on information given in the problem
Population mean
Population standard deviation
Sample mean
Sample size
P value of Z, and decision based on alpha
P value
Find Z in the st
Introduction to Statistics for the Social Sciences
SOC 200

Fall 2012
Chapter 9: Testing Hypotheses Review
Research and null hypotheses
1 tailed or 2 tailed
Test statistic
P value of test statistic
All calculations
Based on either the t or Z distribution
Decision (concerning the null hypothesis)
Based on P value and alpha
O
Introduction to Statistics for the Social Sciences
SOC 200

Fall 2012
Estimated Standard Error
Only for a test on the difference between 2 samples
Extra step needed to find test statistic
Uses information from both samples (N1, N2)
Different equation if variable is proportion or mean
For t test, also must calculate variance
Introduction to Statistics for the Social Sciences
SOC 200

Fall 2012
Chi Square: what youll be asked for
Research and Null Hypotheses
Test Statistic (Chi Square)
All calculations
P value of the Chi Square
Based on the Chi Square distribution
Appendix D
Decision (concerning the null hypothesis)
Based on P value and alpha
Re
Introduction to Statistics for the Social Sciences
SOC 200

Fall 2012
Chapter
Chapter 1: The What and the Why of Statistics: Quiz
1.A variable is a property of people or objects that takes on one or more values.
True
False  Correct!
2.The dependent variable is one which causes a change or an effect in another variable.
Tru