Question

Explain the Chi – Square test and when it is appropriate.

Answer #1

The **Chi**-**square test** is
intended to **test** how likely it is that an observed
**distribution** is due to chance. It is also called a
"goodness of fit" statistic, because it measures how well the
observed **distribution** of data fits with the
**distribution** that is expected if the variables are
independent.

A Chi-square test is designed to analyze
**categorical** data. That means that the data has
been counted and divided into categories. It will not work with
parametric or continuous data (such as height in inches)

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...

*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 =...

When conducting a hypothesis test with chi-square analysis, the
rejection region in a chi-square distribution is always in the
upper or right tail.
Group of answer choices
True
False

Which test (Chi-Square or Fisher’s Exact Test) is most
appropriate for 2x2 table AND how to
determine there a significant difference in the
test?

When evaluating a chi-square test, describe the importance of
the goodness of fit test. Provide an example and explain how the
test is used to evaluate the data.

When evaluating a chi-square test, describe the importance of
the goodness of fit test. Provide an example and explain how the
test is used to evaluate the data.
april 2019 - 150 - 200 words, typed if possible

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.

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

Explain how the chi-square test of independence can be used to
test the difference of two proportions.

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

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