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

The lowest level of measurement for a chi-square goodness-of-fit test is the ______________ level.

Six people have declared their intentions to run for a seat on the school board in the next local election. A poll is conducted during the campaign among 1,020 randomly sampled voters to determine if there is any clear preference among the voters. The responses are shown next. What is the alternative hypothesis?

We are interested in knowing if the following frequency distribution is normally distributed. The population mean and standard deviation of the data are 600 and 160, respectively. To test the hypothesis that the frequency distribution is normally distributed, what is the value of the chi-square critical value at the .05 level of significance?

Six people have declared their intentions to run for a seat on the school board in the next local election. A poll is conducted during the campaign among 1,020 randomly sampled voters to determine if there is any clear preference among the voters. The responses are shown next. What is the critical value at the 5% level of significance?

A recent study of the relationship between social activity and education for a sample of corporate executives showed the following results. Using 0.05 as the significance level, what is the critical value for the test statistic?

We are interested in knowing if the following frequency distribution is normally distributed. The population mean and standard deviation of the data are 600 and 160, respectively. What are the standard normal z-statistic class limits for the "400 up to 600" class?

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 alternative hypothesis?

For a chi-square test involving a contingency table, suppose the null hypothesis is rejected. We conclude that the two variables are __________.

In a contingency table, multiplying the row total by the column total and dividing by the ___________ computes the expected frequency for a cell.

To test the null hypothesis that a set of sample data is normally distributed, we compare an expected normal distribution of the data to an observed distribution of the data.

An F distribution is useful for testing the null hypothesis that a set of sample data is normally distributed.

The chi-square distribution is positively skewed.

We are interested in knowing if the following frequency distribution is normally distributed. The population mean and standard deviation of the data are 600 and 160, respectively. If the distribution was normally distributed, what is the expected frequency for the "400 up to 600" class?

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. How many degrees of freedom are there?

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

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 are the degrees of freedom for testing the null hypothesis?

Using a graphical method to determine if a set of ungrouped raw data is normally distributed, the data would be normally distributed if ____________.

We are interested in knowing if the following frequency distribution is normally distributed. The population mean and standard deviation of the data are 600 and 160, respectively. To test the hypothesis that the frequency distribution is normally distributed, the value of the chi-square test statistic is 12.19. What is the decision regarding the null hypothesis tested at the .05 level of significance?

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 computed value of chi-square?

We are interested in knowing if the following frequency distribution is normally distributed. The population mean and standard deviation are 600 and 160, respectively. To test the hypothesis that the frequency distribution is normally distributed, what are the degrees of freedom for the chi-square statistic?