Question 1

For a chi-square test involving a contingency table,suppose H0 is rejected.We conclude that the two variables are:

Accepted Answer

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

Question 2

Many companies use well-known celebrities as spokespeople in their TV advertisements.A study was conducted to determine whether brand awareness of female TV viewers and the gender of the spokesperson are independent.Each in a sample of 300 female TV viewers was asked to identify a product advertised by a celebrity spokesperson.The gender of the spokesperson and whether or not the viewer could identify the product was recorded.The numbers in each category are given below.   Referring to these sample data,if the appropriate null hypothesis is tested using a significance level equal to .05,which of the following conclusions should be reached?

Accepted Answer

A) There is a relationship between gender of the celebrity and product identification. 
B) There is no relationship between gender of the celebrity and product identification. 
C) The mean number of products identified for males is different than the mean number for females. 
D) Females have higher brand awareness than males. 
A) There is a relationship between gender of the celebrity and product identification. 
B) There is no relationship between gender of the celebrity and product identification. 
C) The mean number of products identified for males is different than the mean number for females. 
D) Females have higher brand awareness than males.

Question 3

In a chi-square goodness-of-fit test,by combining cells we guard against having an inflated test statistic that could have caused us to:

Accepted Answer

A) incorrectly reject the H0. 
B) incorrectly accept the H0. 
C) incorrectly reject the H1. 
D) incorrectly accept the H1. 
A) incorrectly reject the H0. 
B) incorrectly accept the H0. 
C) incorrectly reject the H1. 
D) incorrectly accept the H1.

Question 4

A cell phone company wants to determine if the use of text messaging is independent of age.The following data has been collected from a random sample of customers.   To conduct a contingency analysis,the value of the test statistic is:

Accepted Answer

A) 9.2104 
B) 88.3 
C) 275.02 
D) 14.6 
A) 9.2104 
B) 88.3 
C) 275.02 
D) 14.6

Question 5

What does the term expected cell frequencies refer to?

Accepted Answer

A) The frequencies found in the population being examined 
B) The frequencies found in the sample being examined 
C) The frequencies computed from H0 
D) the frequencies computed from H1 
A) The frequencies found in the population being examined 
B) The frequencies found in the sample being examined 
C) The frequencies computed from H0 
D) the frequencies computed from H1

For a chi-square test involving a contingency table,suppose H₀ is rejected.We conclude that the two variables are:

In a chi-square goodness-of-fit test,by combining cells we guard against having an inflated test statistic that could have caused us to:

A cell phone company wants to determine if the use of text messaging is independent of age.The following data has been collected from a random sample of customers. To conduct a contingency analysis,the value of the test statistic is:

What does the term expected cell frequencies refer to?

The Where,Why,and How of Data Collection

Graphs,Charts and Tablesdescribing Your Data

Describing Data Using Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Introduction to Continuous Probability Distributions

Introduction to Sampling Distributions

Estimating Single Population Parameters

Introduction to Hypothesis Testing

Estimation and Hypothesis Testing for Two Population Parameters

Hypothesis Tests and Estimation for Population Variances

Analysis of Variance

Introduction to Linear Regression and Correlation Analysis

Multiple Regression Analysis and Model Building

Analyzing and Forecasting Time-Series Data

Introduction to Nonparametric Statistics

Introduction to Quality and Statistical Process Control

Filters

Exam 13: Goodness-Of-Fit Tests and Contingency Analysis

For a chi-square test involving a contingency table,suppose H0 is rejected.We conclude that the two variables are:

In a chi-square goodness-of-fit test,by combining cells we guard against having an inflated test statistic that could have caused us to:

A cell phone company wants to determine if the use of text messaging is independent of age.The following data has been collected from a random sample of customers. To conduct a contingency analysis,the value of the test statistic is:

What does the term expected cell frequencies refer to?

The Where,Why,and How of Data Collection

Graphs,Charts and Tablesdescribing Your Data

Describing Data Using Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Introduction to Continuous Probability Distributions

Introduction to Sampling Distributions

Estimating Single Population Parameters

Introduction to Hypothesis Testing

Estimation and Hypothesis Testing for Two Population Parameters

Hypothesis Tests and Estimation for Population Variances

Analysis of Variance

Introduction to Linear Regression and Correlation Analysis

Multiple Regression Analysis and Model Building

Analyzing and Forecasting Time-Series Data

Introduction to Nonparametric Statistics

Introduction to Quality and Statistical Process Control

Filters

For a chi-square test involving a contingency table,suppose H₀ is rejected.We conclude that the two variables are: