Question 1

The mean is a statistic that ______.

Accepted Answer

A)  makes the effect most likely 
B)  maximizes the variance 
C)  minimizes the variance 
D)  identifies the midpoint of the variance range 
A)  makes the effect most likely 
B)  maximizes the variance 
C)  minimizes the variance 
D)  identifies the midpoint of the variance range

Question 2

A correlation coefficient of .6 would indicate a ______.

Accepted Answer

A)  moderate to strong positive relationship 
B)  weak to moderate positive relationship 
C)  moderate negative relationship 
D)  moderate positive relationship 
A)  moderate to strong positive relationship 
B)  weak to moderate positive relationship 
C)  moderate negative relationship 
D)  moderate positive relationship

Question 3

The conditional mean of y is ______.

Accepted Answer

A)  the means of y calculated at each value of x 
B)  the means of x calculated at each value of y 
C)  the total mean of y 
D)  the total mean of x 
A)  the means of y calculated at each value of x 
B)  the means of x calculated at each value of y 
C)  the total mean of y 
D)  the total mean of x

Question 4

After collecting data on age and number of times one was victimized, the researcher found that older people are more likely to be victimized. What type of relationship is this between the two variables?

Accepted Answer

A)  positive 
B)  linear 
C)  negative 
D)  nonlinear 
A)  positive 
B)  linear 
C)  negative 
D)  nonlinear

Question 5

What would ŷ be if the intercept equals 12 and the b equals 2 for an x of 8?

Accepted Answer

A)  28 
B)  22 
C)  32 
D)  20 
A)  28 
B)  22 
C)  32 
D)  20

The mean is a statistic that ______.

A correlation coefficient of .6 would indicate a ______.

The conditional mean of y is ______.

After collecting data on age and number of times one was victimized, the researcher found that older people are more likely to be victimized. What type of relationship is this between the two variables?

What would ŷ be if the intercept equals 12 and the b equals 2 for an x of 8?

The Importance of Statistics in the Criminological Sciences or Why Do I Have to Learn This Stuff

Levels of Measurement and Aggregation

Data Visualization Techniques: Ways of Understanding Data Distributions

Measures of Central Tendency

Measures of Dispersion

Probability, Probability Distributions, and an Introduction to Inferential Statistics

Point Estimation and Confidence Intervals

From Estimation to Statistical Tests: Hypothesis Testing for One Population Mean and Proportion

Testing Hypotheses With Categorical Data

Hypothesis Tests Involving Two Population Means or Proportions

Hypothesis Involving Three or More Population Means: Analysis of Variance

Controlling for a Third Variable: Multiple OlS Regression

Regression Analysis With a Dichotomous Dependent Variable: Logit Models

Filters

Exam 12: Bivariate Correlation and Regression

The mean is a statistic that ______.

A correlation coefficient of .6 would indicate a ______.

The conditional mean of y is ______.

After collecting data on age and number of times one was victimized, the researcher found that older people are more likely to be victimized. What type of relationship is this between the two variables?

What would ŷ be if the intercept equals 12 and the b equals 2 for an x of 8?

The Importance of Statistics in the Criminological Sciences or Why Do I Have to Learn This Stuff

Levels of Measurement and Aggregation

Data Visualization Techniques: Ways of Understanding Data Distributions

Measures of Central Tendency

Measures of Dispersion

Probability, Probability Distributions, and an Introduction to Inferential Statistics

Point Estimation and Confidence Intervals

From Estimation to Statistical Tests: Hypothesis Testing for One Population Mean and Proportion

Testing Hypotheses With Categorical Data

Hypothesis Tests Involving Two Population Means or Proportions

Hypothesis Involving Three or More Population Means: Analysis of Variance

Controlling for a Third Variable: Multiple OlS Regression

Regression Analysis With a Dichotomous Dependent Variable: Logit Models

Filters