CNSL 503 Module 8 Test UPDATED ACTUAL QUESTIONS
AND CORRECT Answers
What is the main difference between parametric and Parametric tests make assumptions based on normal distributions, whereas
nonparametric tests? nonparametric tests make no assumptions about the population parameters
being used.
True or False: Nominal variables are described using False; Nominal variables are described by the frequency in each category of a
measures of central tendency, such as the mean or median. variable.
If the categorization of a nominal variable were based on The frequencies of all levels of the variable would be equal.
random chance, what would the frequency distribution
look like for that variable?
The _____ test is used when analyzing one nominal goodness of fit; test for independence
variable, whereas the_____ test is used when analyzing the
relationship between two nominal variables.
True or False: The steps for hypothesis testing with chi- False; The same four steps are used in hypothesis testing with chi-square tests.
square tests are different than those for parametric tests.
A study investigating cell phone brand preference recruits 125 (500/4 =125); df = 3
500 participants and asks each participant for their
preference of 4 choices of cell phones. What would the
expected frequency be for each category? What is the df?
The null hypothesis for a goodness of fit test states what? All frequencies of a particular variable are equal.
The null hypothesis for a test for independence states The two variables are independent of one another.
what?
Which of the following is NOT one of the assumptions The expected frequency for each category must be at least 5.
made in a chi-square test? 2 multiple choice options
In a goodness of fit test, if the null hypothesis is not Sampling Error
rejected, then differences between the observed and
expected frequencies are most likely due to _ _.
Researchers are investigating whether watching animated Test for independence since the relationship between two nominal variables is
tv shows is related to video game interest in adolescent being studied.
children. They recruit a sample of 100 children. Which type
of chi-square test should they perform?
AND CORRECT Answers
What is the main difference between parametric and Parametric tests make assumptions based on normal distributions, whereas
nonparametric tests? nonparametric tests make no assumptions about the population parameters
being used.
True or False: Nominal variables are described using False; Nominal variables are described by the frequency in each category of a
measures of central tendency, such as the mean or median. variable.
If the categorization of a nominal variable were based on The frequencies of all levels of the variable would be equal.
random chance, what would the frequency distribution
look like for that variable?
The _____ test is used when analyzing one nominal goodness of fit; test for independence
variable, whereas the_____ test is used when analyzing the
relationship between two nominal variables.
True or False: The steps for hypothesis testing with chi- False; The same four steps are used in hypothesis testing with chi-square tests.
square tests are different than those for parametric tests.
A study investigating cell phone brand preference recruits 125 (500/4 =125); df = 3
500 participants and asks each participant for their
preference of 4 choices of cell phones. What would the
expected frequency be for each category? What is the df?
The null hypothesis for a goodness of fit test states what? All frequencies of a particular variable are equal.
The null hypothesis for a test for independence states The two variables are independent of one another.
what?
Which of the following is NOT one of the assumptions The expected frequency for each category must be at least 5.
made in a chi-square test? 2 multiple choice options
In a goodness of fit test, if the null hypothesis is not Sampling Error
rejected, then differences between the observed and
expected frequencies are most likely due to _ _.
Researchers are investigating whether watching animated Test for independence since the relationship between two nominal variables is
tv shows is related to video game interest in adolescent being studied.
children. They recruit a sample of 100 children. Which type
of chi-square test should they perform?
