Exam 16: Analysis of Categorical Data

A cancer research group surveys 100 women more than 40 years old to test the hypothesis that 50% of women in this age group have regularly scheduled mammograms.Forty of the women respond affirmatively.Using $\alpha$ = 0.05,the critical value of chi-square 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

Ophelia O'Brien,VP of Consumer Credit of American First Banks (AFB),monitors the default rate on personal loans at the AFB 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 23

A recent national poll showed the reading habits of adults during the last 12 months: A poll in a small Midwestern town shows the following percentages: Comparing the critical and observed values of the goodness-of fit chi-squared statistic and Α = 0.05,the appropriate decision is ______.

(Multiple Choice)

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Question 24

Ophelia O'Brien,VP of Consumer Credit of American First Banks (AFB),monitors the default rate on personal loans at the AFB 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,critical chi-square value is _______.

(Multiple Choice)

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Question 25

A market researcher is interested in determining whether the age of listeners influences their preferred musical styles.The following is a contingency table from a random sample of 385 individuals: The researcher uses α = 0.05.The appropriate decision is ______.

(Multiple Choice)

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Question 26

Ophelia O'Brien,VP of Consumer Credit of American First Banks (AFB),monitors the default rate on personal loans at the AFB 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.Ophelia's null hypothesis is _______.

(Multiple Choice)

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Question 27

Sami Schmitt believes that number of cars arriving at his Scrub and Shine Car Wash follow a Poisson distribution. He collected a random sample and constructed the following frequency distribution to test his hypothesis. $Sami Schmitt believes that number of cars arriving at his Scrub and Shine Car Wash follow a Poisson distribution. He collected a random sample and constructed the following frequency distribution to test his hypothesis. Using \alpha = 0.05,the appropriate decision for this goodness-of-fit test is .$ Using $\alpha$ = 0.05,the appropriate decision for this goodness-of-fit test is .

(Multiple Choice)

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Question 28

A market researcher is interested in determining whether the age of listeners influences their preferred musical styles.The following is a contingency table from a random sample of 385 individuals: The researcher uses α = 0.05.The critical chi-square value is ______.

(Multiple Choice)

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Question 29

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

(Multiple Choice)

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Question 30

A researcher is interested in using a chi-square test of independence to determine if age is independent of minutes spent reading.Age is divided into four categories while minutes spent reading is classified as high,medium,low.The number of degrees of freedom for this test is 12.

(True/False)

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Question 31

Anita Cruz recently assumed responsibility for a large investment portfolio. She wonders whether industry sector influences investment objective.Her staff prepared the following contingency table from a random sample of 200 common stocks. $Anita Cruz recently assumed responsibility for a large investment portfolio. She wonders whether industry sector influences investment objective.Her staff prepared the following contingency table from a random sample of 200 common stocks. Using \alpha = .01,critical chi-square value is .$ Using $\alpha$ = .01,critical chi-square value is .

(Multiple Choice)

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Question 32

Sami Schmitt believes that number of cars arriving at his Scrub and Shine Car Wash follow a Poisson distribution. He collected a random sample and constructed the following frequency distribution to test his hypothesis. The observed value of chi-square for this goodness-of-fit test is _____.

(Multiple Choice)

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Question 33

Sam Hill,Director of Media Research,is analyzing subscribers to the TravelWorld magazine. He wonders whether subscriptions are influenced by the head of household's highest degree earned.. His staff prepared the following contingency table from a random sample of 300 households. $Sam Hill,Director of Media Research,is analyzing subscribers to the TravelWorld magazine. He wonders whether subscriptions are influenced by the head of household's highest degree earned.. His staff prepared the following contingency table from a random sample of 300 households. Using \alpha = .05,the critical value of chi-square is .$ Using $\alpha$ = .05,the critical value of chi-square is .

(Multiple Choice)

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Question 34

A gasoline distributor wonders whether an individual's income level influences the grade of gasoline purchased.The following is a contingency table from a random sample of 300 individuals. $A gasoline distributor wonders whether an individual's income level influences the grade of gasoline purchased.The following is a contingency table from a random sample of 300 individuals. Using \alpha = .01,observed chi-square value is .$ Using $\alpha$ = .01,observed chi-square value is .

(Multiple Choice)

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Question 35

The null hypothesis for a chi-square test of independence is that the two variables are not related.

(True/False)

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Question 36

A market researcher is studying the use of coupons by consumers of varying ages.She classifies consumers into four age categories and counts the number of grocery store customers who use at least one coupon during check out.It is expected that data are uniformly distributed across the four age categories.The observed data results in frequencies of 22,35,32,and 21. Using $\alpha$ = .05,the critical chi?square value is _______.

(Multiple Choice)

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Question 37

Anita Cruz recently assumed responsibility for a large investment portfolio. She wonders whether industry sector influences investment objective.Her staff prepared the following contingency table from a random sample of 200 common stocks. $Anita Cruz recently assumed responsibility for a large investment portfolio. She wonders whether industry sector influences investment objective.Her staff prepared the following contingency table from a random sample of 200 common stocks. Using \alpha = .05,critical chi-square value is .$ Using $\alpha$ = .05,critical chi-square value is .

(Multiple Choice)

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Question 38

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'. $Use the following set of observed frequencies to test the independence of the two variables. Variable one has values of 'A' and 'B'; variable two has values of 'C','D',and 'E'. Using \alpha = 0.05,the observed chi-square value is _.$ Using $\alpha$ = 0.05,the observed chi-square value is _.

(Multiple Choice)

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Question 39

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 appropriate decision is _______.

(Multiple Choice)

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Question 40

Showing 21 - 40 of 85

A cancer research group surveys 100 women more than 40 years old to test the hypothesis that 50% of women in this age group have regularly scheduled mammograms.Forty of the women respond affirmatively.Using $\alpha$ = 0.05,the critical value of chi-square is _______.

A recent national poll showed the reading habits of adults during the last 12 months: A poll in a small Midwestern town shows the following percentages: Comparing the critical and observed values of the goodness-of fit chi-squared statistic and Α = 0.05,the appropriate decision is ______.

A market researcher is interested in determining whether the age of listeners influences their preferred musical styles.The following is a contingency table from a random sample of 385 individuals: The researcher uses α = 0.05.The appropriate decision is ______.

A market researcher is interested in determining whether the age of listeners influences their preferred musical styles.The following is a contingency table from a random sample of 385 individuals: The researcher uses α = 0.05.The critical chi-square value is ______.

A researcher is interested in using a chi-square test of independence to determine if age is independent of minutes spent reading.Age is divided into four categories while minutes spent reading is classified as high,medium,low.The number of degrees of freedom for this test is 12.

Sami Schmitt believes that number of cars arriving at his Scrub and Shine Car Wash follow a Poisson distribution. He collected a random sample and constructed the following frequency distribution to test his hypothesis. The observed value of chi-square for this goodness-of-fit test is _____.

The null hypothesis for a chi-square test of independence is that the two variables are not related.

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 appropriate decision 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

A Nalysis 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 cancer research group surveys 100 women more than 40 years old to test the hypothesis that 50% of women in this age group have regularly scheduled mammograms.Forty of the women respond affirmatively.Using α\alphaα = 0.05,the critical value of chi-square is _______.

A recent national poll showed the reading habits of adults during the last 12 months: A poll in a small Midwestern town shows the following percentages: Comparing the critical and observed values of the goodness-of fit chi-squared statistic and Α = 0.05,the appropriate decision is ______.

A market researcher is interested in determining whether the age of listeners influences their preferred musical styles.The following is a contingency table from a random sample of 385 individuals: The researcher uses α = 0.05.The appropriate decision is ______.

A market researcher is interested in determining whether the age of listeners influences their preferred musical styles.The following is a contingency table from a random sample of 385 individuals: The researcher uses α = 0.05.The critical chi-square value is ______.

A researcher is interested in using a chi-square test of independence to determine if age is independent of minutes spent reading.Age is divided into four categories while minutes spent reading is classified as high,medium,low.The number of degrees of freedom for this test is 12.

Sami Schmitt believes that number of cars arriving at his Scrub and Shine Car Wash follow a Poisson distribution. He collected a random sample and constructed the following frequency distribution to test his hypothesis. The observed value of chi-square for this goodness-of-fit test is _____.

A gasoline distributor wonders whether an individual's income level influences the grade of gasoline purchased.The following is a contingency table from a random sample of 300 individuals. Using α\alphaα = .01,observed chi-square value is ______________.

The null hypothesis for a chi-square test of independence is that the two variables are not related.

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 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 α\alphaα = .01,the appropriate decision 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

A Nalysis 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 cancer research group surveys 100 women more than 40 years old to test the hypothesis that 50% of women in this age group have regularly scheduled mammograms.Forty of the women respond affirmatively.Using $\alpha$ = 0.05,the critical value of chi-square 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 appropriate decision is _______.