Question 1

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

Accepted Answer

The answer of The lowest level of measurement for a...

Question 2

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?

Accepted Answer

The answer of Six people have declared their intentions to...

Question 3

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?

Accepted Answer

The answer of We are interested in knowing if the...

Question 4

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?

Accepted Answer

The answer of Six people have declared their intentions to...

Question 5

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?

Accepted Answer

A) 9.488 
B) 5.991 
C) 7.815 
D) 3.841

Question 6

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?

Accepted Answer

The answer of We are interested in knowing if the...

Question 7

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?

Accepted Answer

The answer of A survey of property owners' opinions about...

Question 8

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

Accepted Answer

A) Linear 
B) Curvilinear 
C) Not related 
D) Related

Question 9

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

Accepted Answer

The answer of In a contingency table, multiplying the row...

Question 10

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.

Accepted Answer

A) True 
 B)False

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

The chi-square distribution is positively skewed.

Accepted Answer

A) True 
 B)False

Question 13

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?

Accepted Answer

The answer of We are interested in knowing if the...

Question 14

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?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5

Question 15

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

Accepted Answer

The answer of In a contingency table analysis, the decision...

Question 16

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?

Accepted Answer

The answer of A survey of property owners' opinions about...

Question 17

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

Accepted Answer

A) The plot of the data was curvilinear 
B) The data was randomly distributed 
C) The plot of the data was linear 
D) The plot of the data was significantly different from zero

Question 18

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?

Accepted Answer

The answer of We are interested in knowing if the...

Question 19

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?

Accepted Answer

The answer of A survey of property owners' opinions about...

Question 20

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?

Accepted Answer

The answer of We are interested in knowing if the...

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

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

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?

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?

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

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