Question 1

The claim that "male and female students at Coastal Carolina University prefer different parking lots on campus" is an example of a chi-square null hypothesis.

Accepted Answer

A) True 
 B)False

Question 2

In a goodness-of-fit test,the null hypothesis (no difference between sets of observed and expected frequencies)is rejected when the

Accepted Answer

A) computed chi-square is less than the critical value. 
B) difference between the observed and expected frequencies is significantly large. 
C) difference between the observed and expected frequencies is small. 
D) difference between the observed and expected frequencies occurs by chance. 
A) computed chi-square is less than the critical value. 
B) difference between the observed and expected frequencies is significantly large. 
C) difference between the observed and expected frequencies is small. 
D) difference between the observed and expected frequencies occurs by chance.

Question 3

A recent study of the relationship between social activity and education showed the following results.   Using 0.05 as the significance level,what is the critical value for the test statistic?

Accepted Answer

A) 9.488 
B) 5.991 
C) 7.815 
D) 3.841 
A) 9.488 
B) 5.991 
C) 7.815 
D) 3.841

Question 4

Three new colors have been proposed for the Jeep Grand Cherokee vehicle.They are silvered-blue,almond,and willow green.The null hypothesis for a goodness-of-fit test would be

Accepted Answer

A) willow green is preferred over the other colors. 
B) that there is no preference between the colors. 
C) any one color is preferred over the other colors. 
D) impossible to determine. 
A) willow green is preferred over the other colors. 
B) that there is no preference between the colors. 
C) any one color is preferred over the other colors. 
D) impossible to determine.

Question 5

Recently,students in a marketing research class were interested in the driving behavior of students.Specifically,the marketing students were interested if exceeding the speed limit was related to social activity.They collected the following responses from 100 randomly selected students:   Based on the analysis,what can be concluded?

Accepted Answer

A) Driving behavior and gender are correlated. 
B) Driving behavior and gender are not related. 
C) Driving behavior and gender are related. 
D) No conclusion is possible. 
A) Driving behavior and gender are correlated. 
B) Driving behavior and gender are not related. 
C) Driving behavior and gender are related. 
D) No conclusion is possible.

Question 6

The shape of the chi-square distribution depends on the size of the sample.

Accepted Answer

A) True 
 B)False

Question 7

Six people have declared their intentions to run for a trustee seat in the next local election.A political poll is conducted during the campaign among 1,020 randomly sampled voters to determine if there is any clear preference among the voters.The responses are shown below.   What is the alternative hypothesis? ______________________________

Accepted Answer

Preference among candidates ex

Question 8

What is the null hypothesis in the goodness-of-fit test? ____________

Accepted Answer

The distributions of

Question 9

A personnel manager is concerned about absenteeism.She decides to sample the records to determine if absenteeism is distributed evenly throughout the six-day workweek.The null hypothesis to be tested is: Absenteeism is distributed evenly throughout the week.The 0.01 level is to be used.The sample results are:   What is the expected frequency?

Accepted Answer

A) 9 
B) 10 
C) 11 
D) 12 
A) 9 
B) 10 
C) 11 
D) 12

Question 10

The computed value of chi-square statistic is always positive because the difference between the observed frequencies and the expected frequencies is ______________.

Accepted Answer

The answer of The computed value of chi-square statistic is...

Question 11

A survey of the opinions of property owners about a street widening project was taken to determine whether the resulting opinion was related to the distance of front footage.A randomly selected sample of 100 property owners was contacted and the results are shown below.
  If the computed chi-square is 8.5,what is your decision at the 10% level of significance? __________________________________

Accepted Answer

Reject H₀;opinion and

Question 12

What does the chi-square distribution approach with large degrees of freedom? _________________________

Accepted Answer

Normality

Question 13

A survey of the opinions of property owners about a street widening project was taken to determine whether the resulting opinion was related to the distance of front footage.A randomly selected sample of 100 property owners was contacted and the results are shown below.   What kind of table is this classification? __________________

Accepted Answer

The answer of A survey of the opinions of property...

Question 14

A survey of the opinions of property owners about a street widening project was taken to determine whether the resulting opinion was related to the distance of front footage.A randomly selected sample of 100 property owners was contacted and the results are shown below.   How many degrees of freedom are there?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5 
A) 2 
B) 3 
C) 4 
D) 5

Question 15

What should the expected frequencies be for a goodness-of-fit test if there are only two cells? ___________

Accepted Answer

The answer of What should the expected frequencies be for...

Question 16

Recently,students in a marketing research class were interested in the driving behavior of students.Specifically,the marketing students were interested if exceeding the speed limit was related to social activity.They collected the following responses from 100 randomly selected students:   The null hypothesis for the analysis is:

Accepted Answer

A) There is no relationship between gender and driving behavior. 
B) The correlation between driving behavior and gender is zero. 
C) As driving behavior increases,gender increases. 
D) The mean of driving behavior equals the mean of gender. 
A) There is no relationship between gender and driving behavior. 
B) The correlation between driving behavior and gender is zero. 
C) As driving behavior increases,gender increases. 
D) The mean of driving behavior equals the mean of gender.

Question 17

Nonparametric tests require no assumptions about the shape of the population distribution.

Accepted Answer

A) True 
 B)False

Question 18

In a contingency table,multiplying the row total and the column total and dividing by the ___________ computes the expected frequency for a cell.

Accepted Answer

The answer of In a contingency table,multiplying the row total...

Question 19

For a chi-square test involving a contingency table,suppose the null hypothesis is rejected.We conclude that the two variables are

Accepted Answer

A) linear. 
B) curvilinear. 
C) not related. 
D) related. 
A) linear. 
B) curvilinear. 
C) not related. 
D) related.

Question 20

If the computed value of a chi-square statistic is greater than the critical value,what is our decision? _____________________________

Accepted Answer

Reject H₀;absenteeism

The claim that "male and female students at Coastal Carolina University prefer different parking lots on campus" is an example of a chi-square null hypothesis.

In a goodness-of-fit test,the null hypothesis (no difference between sets of observed and expected frequencies)is rejected when the

A recent study of the relationship between social activity and education showed the following results. Using 0.05 as the significance level,what is the critical value for the test statistic?

Three new colors have been proposed for the Jeep Grand Cherokee vehicle.They are silvered-blue,almond,and willow green.The null hypothesis for a goodness-of-fit test would be

The shape of the chi-square distribution depends on the size of the sample.

What is the null hypothesis in the goodness-of-fit test? ____________

The computed value of chi-square statistic is always positive because the difference between the observed frequencies and the expected frequencies is ______________.

What does the chi-square distribution approach with large degrees of freedom? _________________________

What should the expected frequencies be for a goodness-of-fit test if there are only two cells? ___________

Nonparametric tests require no assumptions about the shape of the population distribution.

In a contingency table,multiplying the row total and the column total and dividing by the ___________ computes the expected frequency for a cell.

For a chi-square test involving a contingency table,suppose the null hypothesis is rejected.We conclude that the two variables are

If the computed value of a chi-square statistic is greater than the critical value,what is our decision? _____________________________

What Is Statistics

Describing Data: Frequency Distributions and Graphic Presentations

Describing Data: Numerical Measures

Describing Data: Displaying and Exploring Data

A Survey of Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

One-Sample Tests of Hypothesis

Two-Sample Tests of Hypothesis

Analysis of Variance

Linear Regression and Correlation

Multiple Regression and Correlation Analysis

Filters

Exam 15: Chi-Square Applications

The claim that "male and female students at Coastal Carolina University prefer different parking lots on campus" is an example of a chi-square null hypothesis.

In a goodness-of-fit test,the null hypothesis (no difference between sets of observed and expected frequencies)is rejected when the

A recent study of the relationship between social activity and education showed the following results. Using 0.05 as the significance level,what is the critical value for the test statistic?

Three new colors have been proposed for the Jeep Grand Cherokee vehicle.They are silvered-blue,almond,and willow green.The null hypothesis for a goodness-of-fit test would be

The shape of the chi-square distribution depends on the size of the sample.

What is the null hypothesis in the goodness-of-fit test? ____________

The computed value of chi-square statistic is always positive because the difference between the observed frequencies and the expected frequencies is ______________.

What does the chi-square distribution approach with large degrees of freedom? _________________________

What should the expected frequencies be for a goodness-of-fit test if there are only two cells? ___________

Nonparametric tests require no assumptions about the shape of the population distribution.

In a contingency table,multiplying the row total and the column total and dividing by the ___________ computes the expected frequency for a cell.

For a chi-square test involving a contingency table,suppose the null hypothesis is rejected.We conclude that the two variables are

If the computed value of a chi-square statistic is greater than the critical value,what is our decision? _____________________________

What Is Statistics

Describing Data: Frequency Distributions and Graphic Presentations

Describing Data: Numerical Measures

Describing Data: Displaying and Exploring Data

A Survey of Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

One-Sample Tests of Hypothesis

Two-Sample Tests of Hypothesis

Analysis of Variance

Linear Regression and Correlation

Multiple Regression and Correlation Analysis

Filters