Exam 15: Nonparametric Methods: Nominal Level Hypothesis Tests

In the goodness-of-fit test, the chi-square distribution is used to determine how well an observed distribution of observations "fits" an expected distribution of observations.

The claim that "male and female students at Coastal Carolina University prefer different parking lots on campus" is an example of a chi-square null hypothesis.

A recent study of the relationship between social activity and education for a sample of corporate executives showed the following results. What is the value of the chi-square test statistic?

The degrees of freedom for a contingency table with 6 rows and 3 columns is ______.

A recent study of the relationship between social activity and education for a sample of corporate executives showed the following results. Based on the analysis, what can be concluded?

A t-statistic is useful for computing an expected normal distribution.

To test if an observed frequency distribution with five classes is normally distributed, we compute probabilities for each class based on a(n) _________________.

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

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 ______________.

To test if an observed frequency distribution with five classes is normally distributed, we need to ___________.

The purpose of pooling the sample proportions when testing the difference between two population proportions is to ___________.

Recently, students in a marketing research class were interested in the driving behavior of students. Specifically, the marketing students were interested in finding out if exceeding the speed limit was related to social activity. They collected the following responses from 100 randomly selected students: What is the value of the test statistic?

A recent study of the relationship between social activity and education for a sample of corporate executives showed the following results. The appropriate test statistic for the analysis is a(n) __________.

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

A committee that is studying employer-employee relations proposed that each employee would rate his or her immediate supervisor, and in turn the supervisor would rate each employee. To test if the reactions to the survey for office and plant personnel were the same, 120 office personnel and 160 plant personnel were selected at random. Seventy-eight of the office personnel and 90 of the plant personnel were in favor of the proposal. What is the pooled estimate of the population proportion?

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

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 critical value at the 5% level of significance?

A chi-square goodness-of-fit test is used to determine how well an observed distribution fits an _________ distribution.

A manufacturer claims that less than 1% of all its products do not meet the minimum government standards. A survey of 500 products revealed that 10 did not meet the standard. Thus, the alternate hypothesis is ___________________.

Recently, students in a marketing research class were interested in the driving behavior of students. Specifically, the marketing students were interested in finding out if exceeding the speed limit was related to social activity. They collected the following responses from 100 randomly selected students: The degrees of freedom for the analysis are ________.