Question 1

The Wilcoxon signed-rank test:

Accepted Answer

A)  is concerned with the analysis of a single population. 
B)  cannot be used with ordinal data. 
C)  makes use of the sign and magnitude of the rank of the differences between pairs of measurements. 
D)  makes use of the sign, but not the magnitude, of the differences between pairs of measurements. 
A)  is concerned with the analysis of a single population. 
B)  cannot be used with ordinal data. 
C)  makes use of the sign and magnitude of the rank of the differences between pairs of measurements. 
D)  makes use of the sign, but not the magnitude, of the differences between pairs of measurements.

Question 2

A recent survey of practicing Jews, Christians, and Muslims asked these participants' their opinion concerning prayer in public schools.The possible responses were "Strongly For," "No Opinion," or "Strongly Against." The survey also asked several additional questions, which were used to create a continuous "religiosity" variable designed to indicate the amount of influence an individual's religion has on his or her daily life. ​   ​
Conduct a Kruskal-Wallis test to see if there is a significant difference in the religiosity of the response groups.Use a   approximation.Select the appropriate critical value (CV), test statistic (TS), and decision.(Use α = 0.01.)

Accepted Answer

A)  CV = 9.2103, TS = 13.20, reject H₀ 
B)  CV = 9.2103, TS = 12.22, reject H₀ 
C)  CV = 11.3449, TS = 13.20, reject H₀ 
D)  CV = 10.5966, TS = 9.22, fail to reject H₀ 
A)  CV = 9.2103, TS = 13.20, reject H₀ 
B)  CV = 9.2103, TS = 12.22, reject H₀ 
C)  CV = 11.3449, TS = 13.20, reject H₀ 
D)  CV = 10.5966, TS = 9.22, fail to reject H₀

Question 3

A Kruskal-Wallis test has the following characteristics:   What would be the correct chi-square critical value for this test if α = 0.01?

Accepted Answer

A)  11.3449 
B)  33.4087 
C)  9.2103 
D)  10.5966 
A)  11.3449 
B)  33.4087 
C)  9.2103 
D)  10.5966

Question 4

A Kruskal-Wallis test is always:

Accepted Answer

A)  used with only one sample. 
B)  used with exactly two samples. 
C)  a test that rejects H₀ for large values of the test statistic. 
D)  a test that rejects H₀ for very large or very small values of the test statistic. 
A)  used with only one sample. 
B)  used with exactly two samples. 
C)  a test that rejects H₀ for large values of the test statistic. 
D)  a test that rejects H₀ for very large or very small values of the test statistic.

Question 5

The runs test is a nonparametric procedure for testing:

Accepted Answer

A)  the amount of skewness in a population. 
B)  whether a population is normally distributed. 
C)  whether data are ordered. 
D)  whether data are from a random process. 
A)  the amount of skewness in a population. 
B)  whether a population is normally distributed. 
C)  whether data are ordered. 
D)  whether data are from a random process.

Question 6

The first step in a Wilcoxon rank-sum test is to order the data and assign a rank of 1 to the:

Accepted Answer

A)  largest observation. 
B)  smallest observation. 
C)  observation that occurs most frequently. 
D)  observation that occurs least frequently. 
A)  largest observation. 
B)  smallest observation. 
C)  observation that occurs most frequently. 
D)  observation that occurs least frequently.

The Wilcoxon signed-rank test:

A Kruskal-Wallis test has the following characteristics: What would be the correct chi-square critical value for this test if α = 0.01?

A Kruskal-Wallis test is always:

The runs test is a nonparametric procedure for testing:

The first step in a Wilcoxon rank-sum test is to order the data and assign a rank of 1 to the:

Why Study Statistics

An Introduction to Statistics and Statistical Inference

Tables and Graphs for Summarizing Data

Numerical Summary Measures

Probability

Random Variables and Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions

Confidence Intervals Based on a Single Sample

Hypothesis Tests Based on a Single Sample

Confidence Intervals and Hypothesis Tests Based on Two Samples or Treatments

The Analysis of Variance

Correlation and Linear Regression

Categorical Data and Frequency Tables

Filters

Exam 15: Nonparametric Statistics

The Wilcoxon signed-rank test:

A Kruskal-Wallis test has the following characteristics: What would be the correct chi-square critical value for this test if α = 0.01?

A Kruskal-Wallis test is always:

The runs test is a nonparametric procedure for testing:

The first step in a Wilcoxon rank-sum test is to order the data and assign a rank of 1 to the:

Why Study Statistics

An Introduction to Statistics and Statistical Inference

Tables and Graphs for Summarizing Data

Numerical Summary Measures

Probability

Random Variables and Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions

Confidence Intervals Based on a Single Sample

Hypothesis Tests Based on a Single Sample

Confidence Intervals and Hypothesis Tests Based on Two Samples or Treatments

The Analysis of Variance

Correlation and Linear Regression

Categorical Data and Frequency Tables

Filters