Question

create an example to which the chi-square test of independence could be applied. Address the following:

- Identify two categorical variables for which a chi-square test of independence could be conducted.
- Describe the categories of each.
- Explain why these would be appropriate for this test.
- Predict whether or not the chi-square test result would be significant, and what this would imply about the variables.

Answer #1

create an assignment about :
Chi-Square Independence test

For each of the following examples, state whether the chi-square
goodness-of-fit test or the chi-square test for independence is
appropriate, and state the degrees of freedom (df) for the
test.
Part (a)
A student tests whether the professor's speaking style (monotone,
dynamic) and student interest (low, average, high) are
independent.
State whether the chi-square goodness-of-fit test or the chi-square
test for independence is appropriate.
chi-square goodness-of-fitchi-square test for
independence
State the degrees of freedom for the test.
df =
Part...

A chi-square test for independence is being used to evaluate the
relationship between two variables. If the test has df = 3, what
can you conclude about the two variables?
One variable consists of 2 categories and the other consists of
3 categories
One variable consists of 2 categories and the other consists of
4 categories
Both variables consists of 2 categories
Both variables consists of 3 categories

*4.) For each of the following examples, state whether the
chi-square goodness-of-fit test or the chi-square test for
independence is appropriate, and state the degrees of freedom
(df) for the test.
Part (a)
An instructor tests whether class attendance (low, average, high)
and grade point average (low, average, high) are independent.
State whether the chi-square goodness-of-fit test or the chi-square
test for independence is appropriate.
chi-square goodness-of-fitchi-square test for
independence
State the degrees of freedom for the test.
df =...

Problem Set 5.4: Alternative to Chi-Square as a Test of
Independence
Criterion: Identify an alternative to
chi-square as a test of independence.
Data: A chi-square test of independence could
be used to examine the relationship between overhead light
preference (on or off) and glasses use (wearing or not
wearing).
Instruction: Answer this: What other type of
test could be used to measure this data? Explain. (hint: the answer
is NOT fishers exact test)

In a Chi-Square Independence test the test statistic is 1.88 and
the critical value is 3.84. Which of the following can we
conclude?
Reject H0 and conclude that the variables are related
Reject HO and conclude that the variables are not related
Not reject H0 and conclude that the variables are related
Not reject H0 and conclude that the variables are not
related

Chi-Square Test for Independence
Using Chi-Square, we are looking to see if there is a
significant difference between what we would expect results to be,
and what the actual results were. That is, expected vs.
observed. Use alpha = .05
Listed below are data from a survey conducted recently where
Males and Females responded to their happiness with their
supervisor (this is fictitious data).
Response
Male
Female
Total
Not at all
23
25
48
Somewhat
13
22
35
Very
26...

Write a sample research question where the chi-square test of
independence would be the most appropriate statistical technique to
use?

How could you use Expected Value in your life or future
profession?How
might the Chi-square test be a useful tool in your future
profession? What might be a proposed study of interest in your
future profession be that would utilize a Chi-square test (be sure
to include the categorical variables in the study)?

Chapter 18
Chi-square – Test of Independence
Certain editors at Sage like to think they’re a bit of a
whiz at soccer. To see how well they play compared with Sussex
lecturers and postgraduates, we invited various employees of Sage
to join in our soccer matches. Every player was allowed only to
play in one match. Over many matches, we counted the number of
players that scored goals. After running a chi-square test of
independence, determine whether or not the...

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