Question 1

If a curve is negatively skewed:

Accepted Answer

A) the longest tail extends to the left 
B) the data are normally distributed 
C) the middle is not as high as a normal curve 
D) the middle is higher than a normal curve 
A) the longest tail extends to the left 
B) the data are normally distributed 
C) the middle is not as high as a normal curve 
D) the middle is higher than a normal curve A

Question 2

If a curve is positively skewed,its mode,median and mean should appear in this order:

Accepted Answer

A) the mean falls to the left of the mode and the mode falls to the right of the median 
B) the median falls to the left of the mode and the mean falls to the left of the median 
C) the median falls to the right of the mode and the mean falls to the right of the median 
D) none of the above 
A) the mean falls to the left of the mode and the mode falls to the right of the median 
B) the median falls to the left of the mode and the mean falls to the left of the median 
C) the median falls to the right of the mode and the mean falls to the right of the median 
D) none of the above C

Question 3

A kurtosis score of -.90 suggests that the data have a:

Accepted Answer

A) a distribution that is extended toward the low tail of a normal curve 
B) less than 90 percent chance of being below the mean 
C) a distribution that can be treated as normal 
D) lower probability of occurrence than a score of +.90 
A) a distribution that is extended toward the low tail of a normal curve 
B) less than 90 percent chance of being below the mean 
C) a distribution that can be treated as normal 
D) lower probability of occurrence than a score of +.90 C

If a curve is negatively skewed:

If a curve is positively skewed,its mode,median and mean should appear in this order:

A kurtosis score of -.90 suggests that the data have a:

Introduction to Statistics

Levels of Measurement

Graphical Statistics

Measures of Central Tendency

Measures of Dispersion

Curves and Distributions

Frequency Distributions

Elementary Relationships: Crosstabulation Tables

Hypotheses and Sampling Distributions

Statistical Significance

Testing for Significance: the Chi-Square Test

Testing for Significance in Two Groups: the T-Test

Testing for Significance in Multiple Groups: the Analysis of Variance Statistic

The Concept of Association

Testing for Association: Phi

Testing for Association: Pearsons R and Regression

Doing Real Research: Elementary Multivariate Relationships

Box Plots

Ordinal-Level Tests of Significance

Multiple Comparison Tests

Nominal Level Tests of Association

Ordinal Level Tests of Association

Addendum Probability

Filters

Exam 19: Skewness and Kurtosis

If a curve is negatively skewed:

If a curve is positively skewed,its mode,median and mean should appear in this order:

A kurtosis score of -.90 suggests that the data have a:

Introduction to Statistics

Levels of Measurement

Graphical Statistics

Measures of Central Tendency

Measures of Dispersion

Curves and Distributions

Frequency Distributions

Elementary Relationships: Crosstabulation Tables

Hypotheses and Sampling Distributions

Statistical Significance

Testing for Significance: the Chi-Square Test

Testing for Significance in Two Groups: the T-Test

Testing for Significance in Multiple Groups: the Analysis of Variance Statistic

The Concept of Association

Testing for Association: Phi

Testing for Association: Pearsons R and Regression

Doing Real Research: Elementary Multivariate Relationships

Box Plots

Ordinal-Level Tests of Significance

Multiple Comparison Tests

Nominal Level Tests of Association

Ordinal Level Tests of Association

Addendum Probability

Filters