Question 1

A survey of the opinions of property owners about a street widening project was taken to determine whether the resulting opinion was related to the distance from the street. A randomly selected sample of 100 property owners was contacted and the results are shown below.  What is the critical value at the 5% level of significance?

Accepted Answer

A)  7.779 
B)  9.488 
C)  9.236 
D)  11.070

Question 2

To determine if a set of ungrouped, raw data is normally distributed, we can use

Accepted Answer

A)  Graphical methods. 
B)  A chi-square test. 
C)  ANOVA. 
D)  Regression.

Question 3

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 4

A personnel manager is concerned about absenteeism. She decides to sample the records to determine if absenteeism is distributed evenly throughout the six-day workweek. The null hypothesis to be tested is: Absenteeism is distributed evenly throughout the week. The 0.01 level is to be used. The sample results are:  What is the calculated value of chi-square?

Accepted Answer

A)  1.0 
B)  0.5 
C)  0.8 
D)  8.0

Question 5

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 below.  What is the null hypothesis?

Accepted Answer

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

Question 6

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

Accepted Answer

A)  Social activity and education are correlated. 
B)  Social activity and education are not related. 
C)  Social activity and education are related. 
D)  No conclusion is possible.

Question 7

A survey of the opinions of property owners about a street widening project was taken to determine whether the resulting opinion was related to the distance from the street. A randomly selected sample of 100 property owners was contacted and the results are shown below.  What is the expected frequency for people against the project and who have over 120 feet of property foot-frontage?

Accepted Answer

A)  1.1 
B)  3.9 
C)  5.0 
D)  5.5

Question 8

The chi-square statistic has

Accepted Answer

A)  one distribution. 
B)  two distributions. 
C)  a family of distributions. 
D)  a uniform distribution.

Question 9

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

Accepted Answer

A)  There is no relationship between gender and driving behavior. 
B)  The correlation between driving behavior and gender is zero. 
C)  As driving behavior increases, gender increases. 
D)  The mean of driving behavior equals the mean of gender.

Question 10

A survey of the opinions of property owners about a street widening project was taken to determine whether the resulting opinion was related to the distance from the street. A randomly selected sample of 100 property owners was contacted and the results are shown below.  How many degrees of freedom are there?

Accepted Answer

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

Question 11

To analyze data cross-classified in a contingency table, how are the degrees of freedom computed?

Accepted Answer

A)  N - 1 
B)  Rows - Columns 
C)  (Rows) x (Columns) 
D)  (Rows - 1) x (Columns - 1)

Question 12

To test a hypothesis to verify that a frequency distribution for sample data is normally distributed, the expected frequencies are _______________ distributed.

Accepted Answer

The answer of To test a hypothesis to verify that...

Question 13

The computed chi-square value is positive because the difference between the observed and expected frequencies is

Accepted Answer

A)  squared. 
B)  linear. 
C)  uniform. 
D)  always positive.

Question 14

The following table classifies an individual in two ways-by gender and by college attended.  What is this two-way classification called?

Accepted Answer

A)  Goodness-of-fit test 
B)  Frequency table 
C)  ANOVA table 
D)  Contingency table

Question 15

A survey of the opinions of property owners about a street widening project was taken to determine whether the resulting opinion was related to the distance from the street. A randomly selected sample of 100 property owners was contacted and the results are shown below.  What is the critical value at the 10% level of significance?

Accepted Answer

A)  7.779 
B)  9.236 
C)  9.488 
D)  11.070

Question 16

A recent study of the relationship between social activity and education 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 17

What is our decision for a goodness-of-fit test with a computed value of chi-square of 1.273 and a critical value of 13.388?

Accepted Answer

A)  Do not reject the null hypothesis 
B)  Reject the null hypothesis 
C)  Unable to reject or not reject the null hypothesis based on data 
D)  Should take a larger sample

Question 18

For a goodness-of-fit test, the following are possible null and alternate hypotheses:
H0: Sales are uniformly distributed among the five locations.
H1: Sales are not uniformly distributed among the five locations.

Accepted Answer

A) True 
 B)False

Question 19

The educational level and the social activity of a sample of executives follow.  What does the expected frequency for the "above average" social activity and "high school" education equal?

Accepted Answer

A)  9.50 
B)  60.00 
C)  22.50 
D)  28.50

Question 20

Two chi-square distributions were plotted on the same chart. One distribution was for 3 degrees of freedom and the other was for 12 degrees of freedom. Which distribution would tend to approach a normal distribution?

Accepted Answer

A)  3 degrees 
B)  12 degrees 
C)  15 degrees 
D)  All would

Exam 17: Nonparametric Methods: Goodness-Of-Fit Tests

To determine if a set of ungrouped, raw data is normally distributed, we can use

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

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

The chi-square statistic has

To analyze data cross-classified in a contingency table, how are the degrees of freedom computed?

To test a hypothesis to verify that a frequency distribution for sample data is normally distributed, the expected frequencies are _______________ distributed.

The computed chi-square value is positive because the difference between the observed and expected frequencies is

The following table classifies an individual in two ways-by gender and by college attended. What is this two-way classification called?

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

What is our decision for a goodness-of-fit test with a computed value of chi-square of 1.273 and a critical value of 13.388?

For a goodness-of-fit test, the following are possible null and alternate hypotheses: H₀: Sales are uniformly distributed among the five locations. H₁: Sales are not uniformly distributed among the five locations.

The educational level and the social activity of a sample of executives follow. What does the expected frequency for the "above average" social activity and "high school" education equal?

Two chi-square distributions were plotted on the same chart. One distribution was for 3 degrees of freedom and the other was for 12 degrees of freedom. Which distribution would tend to approach a normal distribution?

Exam 17: Nonparametric Methods: Goodness-Of-Fit Tests

To determine if a set of ungrouped, raw data is normally distributed, we can use

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

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

The chi-square statistic has

To analyze data cross-classified in a contingency table, how are the degrees of freedom computed?

To test a hypothesis to verify that a frequency distribution for sample data is normally distributed, the expected frequencies are _______________ distributed.

The computed chi-square value is positive because the difference between the observed and expected frequencies is

The following table classifies an individual in two ways-by gender and by college attended. What is this two-way classification called?

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

What is our decision for a goodness-of-fit test with a computed value of chi-square of 1.273 and a critical value of 13.388?

For a goodness-of-fit test, the following are possible null and alternate hypotheses: H0: Sales are uniformly distributed among the five locations. H1: Sales are not uniformly distributed among the five locations.

The educational level and the social activity of a sample of executives follow. What does the expected frequency for the "above average" social activity and "high school" education equal?

Two chi-square distributions were plotted on the same chart. One distribution was for 3 degrees of freedom and the other was for 12 degrees of freedom. Which distribution would tend to approach a normal distribution?

For a goodness-of-fit test, the following are possible null and alternate hypotheses: H₀: Sales are uniformly distributed among the five locations. H₁: Sales are not uniformly distributed among the five locations.