Exam 16: Analysis of Categorical Data

A researcher believes that a variable is Poisson distributed across six categories.To test this,the following random sample of observations is collected: $A researcher believes that a variable is Poisson distributed across six categories.To test this,the following random sample of observations is collected: Using \alpha = 0.10,the critical chi-square value for this goodness-of-fit test is _.$ Using $\alpha$ = 0.10,the critical chi-square value for this goodness-of-fit test is _.

(Multiple Choice)

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Question 21

Catherine Chao,Director of Marketing Research,is evaluating consumer acceptance of alternative toothpaste packages.She wonders whether acceptance is influenced by children in the household.Her staff prepared the following contingency table from a random sample of 100 households: $Catherine Chao,Director of Marketing Research,is evaluating consumer acceptance of alternative toothpaste packages.She wonders whether acceptance is influenced by children in the household.Her staff prepared the following contingency table from a random sample of 100 households: Using \alpha = .05,the observed value of chi-square is _.$ Using $\alpha$ = .05,the observed value of chi-square is _.

(Multiple Choice)

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Question 22

A chi-square goodness-of-fit test is to be performed to see if data fit the Poisson distribution.There are 8 categories,and lambda must be estimated.Alpha is chosen to be 0.10.The critical (table)value of chi-square is ___.

(Multiple Choice)

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Question 23

The null hypothesis in a chi-square goodness-of-fit test is that the observed distribution is same as the expected distribution.

(True/False)

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Question 24

The executives of CareFree Insurance,Inc.feel that "a minority of our employees perceive an authoritarian management style at CareFree." A random sample of 200 CareFree employees is selected to test this hypothesis.Eighty employees rate the management as authoritarian.Using $\alpha$ = 0.05,the appropriate decision is ___.

(Multiple Choice)

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Question 25

A two-way table used for a test of independence is sometimes called a contingency table.

(True/False)

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Question 26

Ophelia O'Brien,VP of Consumer Credit of Credit First Banks (CFB),monitors the default rate on personal loans at the CFB member banks.One of her standards is "no more than 5% of personal loans should be in default." On each Friday,the default rate is calculated for a sample of 500 personal loans.Last Friday's sample contained 30 defaulted loans.Using $\alpha$ = 0.01,the appropriate decision is ___.

(Multiple Choice)

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Question 27

In a chi-square test of independence the contingency table has 4 rows and 3 columns.The number of degrees of freedom for this test is 12.

(True/False)

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Question 28

Ophelia O'Brien,VP of Consumer Credit of Credit First Banks (CFB),monitors the default rate on personal loans at the CFB member banks.One of her standards is "no more than 5% of personal loans should be in default." On each Friday,the default rate is calculated for a sample of 500 personal loans.Last Friday's sample contained 30 defaulted loans.Using $\alpha$ = 0.01,observed chi-square value is ___.

(Multiple Choice)

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Question 29

In a chi-square test of independence the contingency table has 4 rows and 3 columns.The number of degrees of freedom for this test is 7.

(True/False)

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Question 30

A gasoline distributor wonders whether an individual's income levels influences the grade of gasoline purchased. The null hypothesis is ___.

(Multiple Choice)

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Question 31

A contingency table is to be used to test for independence.There are 3 rows and 3 columns in the table.How many degrees of freedom are there for this problem?

(Multiple Choice)

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Question 32

A variable contains five categories.It is expected that data are uniformly distributed across these five categories.To test this,a sample of observed data is gathered on this variable resulting in frequencies of 26,10,17,21,and 26.Using $\alpha$ = .01,the appropriate decision is ___.

(Multiple Choice)

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Question 33

Use the chi-square goodness-of-fit test to analyze probabilities of multinomial distribution trials along a single dimension.

(Essay)

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Question 34

Use the following set of observed frequencies to test the independence of the two variables.Variable one has values of 'A' and 'B';variable two has values of 'C','D',and 'E'. $Use the following set of observed frequencies to test the independence of the two variables.Variable one has values of 'A' and 'B';variable two has values of 'C','D',and 'E'. Using \alpha = 0.05,the expected frequency in row 1 (A)column 1 (C)is _.$ Using $\alpha$ = 0.05,the expected frequency in row 1 (A)column 1 (C)is _.

(Multiple Choice)

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Question 35

A variable contains five categories.It is expected that data are uniformly distributed across these five categories.To test this,a sample of observed data is gathered on this variable resulting in frequencies of 26,10,17,21,and 26.Using $\alpha$ = .01,the observed chi-square value is ___.

(Multiple Choice)

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Question 36

The executives of CareFree Insurance,Inc.feel that "a minority of our employees perceive an authoritarian management style at CareFree." A random sample of 200 CareFree employees is selected to test this hypothesis.Eighty employees rate the management as authoritarian.Using $\alpha$ = 0.05,the observed value of chi-square is ___.

(Multiple Choice)

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Question 37

A chi?square goodness-of-fit test is being used to test the goodness-of-fit of a normal distribution (the mean and the standard deviation of which must be estimated)for a data with "k" categories.This test has (k-3)degrees of freedom.

(True/False)

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Question 38

A variable contains five categories.It is expected that data are uniformly distributed across these five categories.To test this,a sample of observed data is gathered on this variable resulting in frequencies of 27,30,29,21,and 24.Using $\alpha$ = .01,the observed value of chi-square is ___.

(Multiple Choice)

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Question 39

A gasoline distributor wonders whether an individual's income levels influences the grade of gasoline purchased. $A gasoline distributor wonders whether an individual's income levels influences the grade of gasoline purchased. Using \alpha = .01,the observed chi-square value is _.$ Using $\alpha$ = .01,the observed chi-square value is _.

(Multiple Choice)

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Question 40

Showing 21 - 40 of 76

A chi-square goodness-of-fit test is to be performed to see if data fit the Poisson distribution.There are 8 categories,and lambda must be estimated.Alpha is chosen to be 0.10.The critical (table)value of chi-square is ___.

The null hypothesis in a chi-square goodness-of-fit test is that the observed distribution is same as the expected distribution.

A two-way table used for a test of independence is sometimes called a contingency table.

In a chi-square test of independence the contingency table has 4 rows and 3 columns.The number of degrees of freedom for this test is 12.

In a chi-square test of independence the contingency table has 4 rows and 3 columns.The number of degrees of freedom for this test is 7.

A gasoline distributor wonders whether an individual's income levels influences the grade of gasoline purchased. The null hypothesis is ___.

A contingency table is to be used to test for independence.There are 3 rows and 3 columns in the table.How many degrees of freedom are there for this problem?

A variable contains five categories.It is expected that data are uniformly distributed across these five categories.To test this,a sample of observed data is gathered on this variable resulting in frequencies of 26,10,17,21,and 26.Using $\alpha$ = .01,the appropriate decision is ___.

Use the chi-square goodness-of-fit test to analyze probabilities of multinomial distribution trials along a single dimension.

A variable contains five categories.It is expected that data are uniformly distributed across these five categories.To test this,a sample of observed data is gathered on this variable resulting in frequencies of 26,10,17,21,and 26.Using $\alpha$ = .01,the observed chi-square value is ___.

A chi?square goodness-of-fit test is being used to test the goodness-of-fit of a normal distribution (the mean and the standard deviation of which must be estimated)for a data with "k" categories.This test has (k-3)degrees of freedom.

A variable contains five categories.It is expected that data are uniformly distributed across these five categories.To test this,a sample of observed data is gathered on this variable resulting in frequencies of 27,30,29,21,and 24.Using $\alpha$ = .01,the observed value of chi-square is ___.

Introduction to Statistics

Charts and Graphs

Descriptive Statistics

Probability

Discrete Distributions

Continuous Distributions

Sampling and Sampling Distributions

Statistical Inference: Estimation for Single Populations

Statistical Inference: Hypothesis Testing for Single Populations

Statistical Inferences About Two Populations

Analysis of Variance and Design of Experiments

Simple Regression Analysis and Correlation

Multiple Regression Analysis

Building Multiple Regression Models

Time-Series Forecasting and Index Numbers

Nonparametric Statistics

Statistical Quality Control

Decision Analysis

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Exam 16: Analysis of Categorical Data

A researcher believes that a variable is Poisson distributed across six categories.To test this,the following random sample of observations is collected: Using α\alphaα = 0.10,the critical chi-square value for this goodness-of-fit test is ___.

A chi-square goodness-of-fit test is to be performed to see if data fit the Poisson distribution.There are 8 categories,and lambda must be estimated.Alpha is chosen to be 0.10.The critical (table)value of chi-square is ___.

The null hypothesis in a chi-square goodness-of-fit test is that the observed distribution is same as the expected distribution.

A two-way table used for a test of independence is sometimes called a contingency table.

In a chi-square test of independence the contingency table has 4 rows and 3 columns.The number of degrees of freedom for this test is 12.

In a chi-square test of independence the contingency table has 4 rows and 3 columns.The number of degrees of freedom for this test is 7.

A gasoline distributor wonders whether an individual's income levels influences the grade of gasoline purchased. The null hypothesis is ___.

A contingency table is to be used to test for independence.There are 3 rows and 3 columns in the table.How many degrees of freedom are there for this problem?

A variable contains five categories.It is expected that data are uniformly distributed across these five categories.To test this,a sample of observed data is gathered on this variable resulting in frequencies of 26,10,17,21,and 26.Using α\alphaα = .01,the appropriate decision is ___.

Use the chi-square goodness-of-fit test to analyze probabilities of multinomial distribution trials along a single dimension.

Use the following set of observed frequencies to test the independence of the two variables.Variable one has values of 'A' and 'B';variable two has values of 'C','D',and 'E'. Using α\alphaα = 0.05,the expected frequency in row 1 (A)column 1 (C)is ___.

A variable contains five categories.It is expected that data are uniformly distributed across these five categories.To test this,a sample of observed data is gathered on this variable resulting in frequencies of 26,10,17,21,and 26.Using α\alphaα = .01,the observed chi-square value is ___.

A chi?square goodness-of-fit test is being used to test the goodness-of-fit of a normal distribution (the mean and the standard deviation of which must be estimated)for a data with "k" categories.This test has (k-3)degrees of freedom.

A variable contains five categories.It is expected that data are uniformly distributed across these five categories.To test this,a sample of observed data is gathered on this variable resulting in frequencies of 27,30,29,21,and 24.Using α\alphaα = .01,the observed value of chi-square is ___.

A gasoline distributor wonders whether an individual's income levels influences the grade of gasoline purchased. Using α\alphaα = .01,the observed chi-square value is ___.

Introduction to Statistics

Charts and Graphs

Descriptive Statistics

Probability

Discrete Distributions

Continuous Distributions

Sampling and Sampling Distributions

Statistical Inference: Estimation for Single Populations

Statistical Inference: Hypothesis Testing for Single Populations

Statistical Inferences About Two Populations

Analysis of Variance and Design of Experiments

Simple Regression Analysis and Correlation

Multiple Regression Analysis

Building Multiple Regression Models

Time-Series Forecasting and Index Numbers

Nonparametric Statistics

Statistical Quality Control

Decision Analysis

Filters

A variable contains five categories.It is expected that data are uniformly distributed across these five categories.To test this,a sample of observed data is gathered on this variable resulting in frequencies of 26,10,17,21,and 26.Using $\alpha$ = .01,the appropriate decision is ___.

A variable contains five categories.It is expected that data are uniformly distributed across these five categories.To test this,a sample of observed data is gathered on this variable resulting in frequencies of 26,10,17,21,and 26.Using $\alpha$ = .01,the observed chi-square value is ___.

A variable contains five categories.It is expected that data are uniformly distributed across these five categories.To test this,a sample of observed data is gathered on this variable resulting in frequencies of 27,30,29,21,and 24.Using $\alpha$ = .01,the observed value of chi-square is ___.