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Exam 15: Nonparametric Methods: Goodness-Of-Fit Tests

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Question 31

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The degrees of freedom for a chi-square goodness-of-fit test is equal to ______________.

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Question 32

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The Anderson-Darling test for normality tests a null hypothesis that the sample data are ______ distributed.

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Question 33

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A personnel manager is concerned about absenteeism. She decides to sample employee records to determine if absenteeism is distributed evenly throughout the six-day workweek. The null hypothesis is: Absenteeism is distributed evenly throughout the week. The 0.01 level is to be used. The sample results are: What kind of frequencies are the numbers 12, 9, 11, 10, 9, and 9 called?

Which of the following statements is correct regarding the goodness-of-fit test?

A recent study of the relationship between social activity and education for a sample of corporate executives showed the following results. The appropriate test to analyze the relationship between social activity and education is __________.

A survey of property owners' opinions about a street-widening project was taken to determine if owners' opinions were related to the distance between their home and the street. A randomly selected sample of 100 property owners was contacted and the results are shown next. This classification is summarized with what kind of table?

To verify that a frequency distribution for sample data is normally distributed, the expected frequencies are computed using probabilities from a _____________ distribution.

For people released from prison, the following table shows their adjustment to civilian life and place of residence. What is the critical value for this contingency table at the 0.01 level of significance?

For hypothesis tests using a chi-square statistic, the rejection region is in the _____________ tail of the chi-square distribution.

Contingency table analysis can be used to test for a relationship between two _________ scale variables.

There is not one, but a family of chi-square distributions. There is a chi-square distribution for 1 degree of freedom, another for 2 degrees of freedom, another for 3 degrees of freedom, and so on.

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

In a contingency table, the decision to reject the null hypothesis is based on a __________ test statistic.

What are the degrees of freedom for a contingency table analysis?

Which of the following can be used to test the hypothesis that two nominal variables are related?

To determine if a set of ungrouped raw data is normally distributed, what test statistic would we use?

A survey of property owners' opinions about a street-widening project was taken to determine if owners' opinions were related to the distance between their home and the street. A randomly selected sample of 100 property owners was contacted and the results are shown next. What is the expected frequency for people who are undecided about the project and have property front-footage between 45 and 120 feet?

To determine if a set of ungrouped raw data is normally distributed, the null hypothesis is ________________.

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

The contingency table for a sample of corporate executives classified by educational level and the social activity follows. What does the expected frequency for the "above average" social activity and "high school" education equal?