Exam 12: Comparing Multiple Proportions, Tests of Independence and Goodness of Fit

The test statistic for goodness of fit has a chi-square distribution with k - 1 degrees of freedom provided that the expected frequencies for all categories are

(Multiple Choice)

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Question 21

The number of degrees of freedom associated with the chi-square distribution in a test of independence is number of _____ minus 1.

(Multiple Choice)

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Question 22

The degrees of freedom for a data table with 10 rows and 10 columns is

(Multiple Choice)

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Question 23

You want to test whether or not the following sample of 30 observations follows a normal distribution. The mean of the sample equals 11.83 and the standard deviation equals 4.53. The calculated value for the test statistic equals

(Multiple Choice)

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Question 24

The sampling distribution for a goodness of fit test is the _____ distribution.

(Multiple Choice)

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Question 25

The test for goodness of fit, test of independence, and test of multiple proportions are designed for use with _____ data.

(Multiple Choice)

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Question 26

The owner of a car wash wants to see if the arrival rate of cars follows a Poisson distribution. In order to test the assumption of a Poisson distribution, a random sample of 150 ten-minute intervals was taken. You are given the following observed frequencies: The p-value is

(Multiple Choice)

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Question 27

Last school year, the student body of a local university consisted of 30% freshmen, 24% sophomores, 26% juniors, and 20% seniors. A sample of 400 students taken from this year's student body showed the following number of students in each classification. We are interested in determining whether or not there has been a significant change in the classifications between the last school year and this school year. At a .01 level of significance, the null hypothesis

(Multiple Choice)

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Question 28

In the past, 35% of the students at ABC University were in the Business College, 35% of the students were in the Liberal Arts College, and 30% of the students were in the Education College. To see whether or not the proportions have changed, a sample of 300 students from the university was taken. Ninety of the sample students are in the Business College, 120 are in the Liberal Arts College, and 90 are in the Education College. Using α = .05, the conclusion of the test is that the

(Multiple Choice)

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Question 29

You want to test whether or not the following sample of 30 observations follows a normal distribution. The mean of the sample equals 11.83 and the standard deviation equals 4.53. The expected frequency in the 3rd interval is

(Multiple Choice)

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Question 30

The following table shows the number of individuals in a sample of 300 who indicated they support the new tax proposal. We are interested in determining whether or not the opinions of the individuals of the three groups are uniformly distributed. The calculated value for the test statistic equals

(Multiple Choice)

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Question 31

The properties of a multinomial experiment include all of the following except

(Multiple Choice)

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Question 32

When individuals in a sample of 150 were asked whether or not they supported capital punishment, the following information was obtained. We are interested in determining whether or not the opinions of the individuals (as to Yes, No, and No Opinion) are uniformly distributed. The expected frequency for each group is

(Multiple Choice)

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Question 33

Last school year, the student body of a local university consisted of 30% freshmen, 24% sophomores, 26% juniors, and 20% seniors. A sample of 400 students taken from this year's student body showed the following number of students in each classification. We are interested in determining whether or not there has been a significant change in the classifications between the last school year and this school year. The p-value is

(Multiple Choice)

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Question 34

The following table shows the number of individuals in a sample of 300 who indicated they support the new tax proposal. We are interested in determining whether or not the opinions of the individuals of the three groups are uniformly distributed. The number of degrees of freedom associated with this problem is

(Multiple Choice)

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Question 35

A major automobile manufacturer claimed that the frequencies of repairs on all five models of its cars are the same. A sample of 200 repair services showed the following frequencies on the various makes of cars. At α = .01, test the manufacturer's claim.

(Essay)

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Question 36

The owner of a car wash wants to see if the arrival rate of cars follows a Poisson distribution. In order to test the assumption of a Poisson distribution, a random sample of 150 ten-minute intervals was taken. You are given the following observed frequencies: The calculated value for the test statistic equals

(Multiple Choice)

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Question 37

An important application of the chi-square distribution is

(Multiple Choice)

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Question 38

The degrees of freedom for a data table with 10 rows and 11 columns is

(Multiple Choice)

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Question 39

Two hundred fifty managers with degrees in business administration indicated their fields of concentration as shown below. At α = .01 using the p-value approach, test to determine if the position in management is independent of the major of concentration.

(Essay)

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Question 40

Showing 21 - 40 of 59

The test statistic for goodness of fit has a chi-square distribution with k - 1 degrees of freedom provided that the expected frequencies for all categories are

The number of degrees of freedom associated with the chi-square distribution in a test of independence is number of _____ minus 1.

The degrees of freedom for a data table with 10 rows and 10 columns is

You want to test whether or not the following sample of 30 observations follows a normal distribution. The mean of the sample equals 11.83 and the standard deviation equals 4.53. The calculated value for the test statistic equals

The sampling distribution for a goodness of fit test is the _____ distribution.

The test for goodness of fit, test of independence, and test of multiple proportions are designed for use with _____ data.

The owner of a car wash wants to see if the arrival rate of cars follows a Poisson distribution. In order to test the assumption of a Poisson distribution, a random sample of 150 ten-minute intervals was taken. You are given the following observed frequencies: The p-value is

You want to test whether or not the following sample of 30 observations follows a normal distribution. The mean of the sample equals 11.83 and the standard deviation equals 4.53. The expected frequency in the 3rd interval is

The following table shows the number of individuals in a sample of 300 who indicated they support the new tax proposal. We are interested in determining whether or not the opinions of the individuals of the three groups are uniformly distributed. The calculated value for the test statistic equals

The properties of a multinomial experiment include all of the following except

A major automobile manufacturer claimed that the frequencies of repairs on all five models of its cars are the same. A sample of 200 repair services showed the following frequencies on the various makes of cars. At α = .01, test the manufacturer's claim.

An important application of the chi-square distribution is

The degrees of freedom for a data table with 10 rows and 11 columns is

Two hundred fifty managers with degrees in business administration indicated their fields of concentration as shown below. At α = .01 using the p-value approach, test to determine if the position in management is independent of the major of concentration.

Data and Statistics

Descriptive Statistics: Tabular and Graphical Displays

Descriptive Statistics: Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Inference About Means and Proportions With Two Populations

Inferences About Population Variances

Experimental Design and Analysis of Variance

Simple Linear Regression

Multiple Regression

Regression Analysis: Model Building

Time Series Analysis and Forecasting

Nonparametric Methods

Decision Analysis

Index Numbers

Statistical Methods for Quality Control

Sample Survey

Filters

Exam 12: Comparing Multiple Proportions, Tests of Independence and Goodness of Fit

The test statistic for goodness of fit has a chi-square distribution with k - 1 degrees of freedom provided that the expected frequencies for all categories are​

The number of degrees of freedom associated with the chi-square distribution in a test of independence is number of _____ minus 1.

The degrees of freedom for a data table with 10 rows and 10 columns is

You want to test whether or not the following sample of 30 observations follows a normal distribution. The mean of the sample equals 11.83 and the standard deviation equals 4.53. ​ The calculated value for the test statistic equals

The sampling distribution for a goodness of fit test is the _____ distribution.

The test for goodness of fit, test of independence, and test of multiple proportions are designed for use with _____ data.

The owner of a car wash wants to see if the arrival rate of cars follows a Poisson distribution. In order to test the assumption of a Poisson distribution, a random sample of 150 ten-minute intervals was taken. You are given the following observed frequencies: The p-value is

You want to test whether or not the following sample of 30 observations follows a normal distribution. The mean of the sample equals 11.83 and the standard deviation equals 4.53. ​ The expected frequency in the 3rd interval is

The properties of a multinomial experiment include all of the following except​

A major automobile manufacturer claimed that the frequencies of repairs on all five models of its cars are the same. A sample of 200 repair services showed the following frequencies on the various makes of cars. ​ At α = .01, test the manufacturer's claim.

An important application of the chi-square distribution is

The degrees of freedom for a data table with 10 rows and 11 columns is

Two hundred fifty managers with degrees in business administration indicated their fields of concentration as shown below. ​ At α = .01 using the p-value approach, test to determine if the position in management is independent of the major of concentration.

Data and Statistics

Descriptive Statistics: Tabular and Graphical Displays

Descriptive Statistics: Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Inference About Means and Proportions With Two Populations

Inferences About Population Variances

Experimental Design and Analysis of Variance

Simple Linear Regression

Multiple Regression

Regression Analysis: Model Building

Time Series Analysis and Forecasting

Nonparametric Methods

Decision Analysis

Index Numbers

Statistical Methods for Quality Control

Sample Survey

Filters

The test statistic for goodness of fit has a chi-square distribution with k - 1 degrees of freedom provided that the expected frequencies for all categories are

You want to test whether or not the following sample of 30 observations follows a normal distribution. The mean of the sample equals 11.83 and the standard deviation equals 4.53. The calculated value for the test statistic equals

You want to test whether or not the following sample of 30 observations follows a normal distribution. The mean of the sample equals 11.83 and the standard deviation equals 4.53. The expected frequency in the 3rd interval is

The properties of a multinomial experiment include all of the following except

A major automobile manufacturer claimed that the frequencies of repairs on all five models of its cars are the same. A sample of 200 repair services showed the following frequencies on the various makes of cars. At α = .01, test the manufacturer's claim.

Two hundred fifty managers with degrees in business administration indicated their fields of concentration as shown below. At α = .01 using the p-value approach, test to determine if the position in management is independent of the major of concentration.