Question

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)

Answer #1

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.

CONTINUED ON NEXT PAGE
Problem Set 2: Chi Square Test for
Independence
Research Scenario: A psychology student at a
university is curious whether students in different majors (IV)
have different class time preferences (DV), or whether class time
preference is independent of major. After doing some preliminary
research, she chooses three different majors and recruits 10
volunteers from each major. She then asks them to choose their
preferred class time—either morning or afternoon. The results are
listed in the table...

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...

Choose the most appropriate answer to fill in the blank. The
chi-square test for independence requires ________ data.
Select one:
a. continuous
b. count
c. normal
d. very little

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...

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

*HOW WOULD I SET THIS UP IN A CHI-SQUARE TEST*
An example for numerical to categorical data off the top of my
head: Light of different color has different wavelengths, but
certain ranges of wavelengths qualify as certain
shades/hues/tints/etc. You can generalize and say a certain range
can be called "blue" or "red". Red is usually attributed to light
that has a wavelength between 780 and 622 nanometers, whereas blue
light is between 492 and 455 nm. To the average...

I need to run a chi square and f test that compares the
variances of the following:
Does the proportion of women who study more than 4 hours
a week differ from the proportion of men that study more than 4
hours a week?
Please include null and alternative hypothesis, the results, and
show all work. Please identify if any tests in excel were used.
Here is the data
Women
1
7
6
5
6
8
6
5
2
7...

For each of the following scenarios, identify:
the population of interest,
the outcome variable being measured on each observational
unit,
whether the outcome variable being measured is categorical
or quantitative/Continuous,
the parameter of interest, define both in words and using the
appropriate statistical symbol (π, π1 -π2, µ, µ1 - µ2, or µd),
and
the null and alternative hypotheses, written in correct
statistical notation (not in words)
Name the hypothesis test you would use. For example, some tests
we have...

Please read the article and answear about
questions.
Determining the Value of the Business
After you have completed a thorough and exacting investigation,
you need to analyze all the infor- mation you have gathered. This
is the time to consult with your business, financial, and legal
advis- ers to arrive at an estimate of the value of the business.
Outside advisers are impartial and are more likely to see the bad
things about the business than are you. You should...

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