Question

*Define what Goodness of Fit is, briefly discuss the
objective of testing for Goodness of Fit in a minimum of a
paragraph*

Answer #1

Goodness-of-fit, in general, refers to measuring how well do the observed data correspond to the fitted model.

The idea is that if the observed frequency is really close to the expected frequency, then the square of the deviations will be small. The square of the deviation is divided by the expected frequency to weight frequencies. If the sum of these weighted squared deviations is small, the observed frequencies are close to expected frequencies and the model is OK. Only when the sum is large is the a reason to question the distribution.

The procedures for testing hypotheses with goodness of
fit test have requirement that each category must have an expected
frequency of
A- LESS THAN 5
B- MORE THAN 5

What is it and how to test the goodness of fit for a logistic
model?

what is the objective of product market fit

Goodness of fit test is a multinomial probability distribution.
What aspects of the test satisfy the properties of multinomial
probability? Explain

For a chi-square goodness-of-fit test,
what is the number of degrees of freedom, if the number of
categories in the distribution is 9? ______________
what is the critical value for a 1% level of significance?
_____________

A. Compare the Goodness of Fit Test and the Test for
Independence in terms of the number of variables and levels of
those that can be compared. In what ways are they similar or
different?
B. Describe how the Test for Independence and correlation are
similar yet different.

What is evaluated by the chi-square test for goodness of
fit?
a. If proportions of a sample distribution match those of a
population specified by the null hypothesis
b. If the frequencies found within an individual category match
a certain shape
c. Whether the means of two or more categories differ from one
another
d. Whether two variables are related to each other or
independent

Identify and define the two components of audit quality.
Briefly discuss the determinants of the audit fee level.

Briefly define either the moral, medical or social model of
disability. does the Individuals with Disabilities Education Act
(IDEA) fit a moral, medical, or social model approach towards
working with a person who has a disability? discuss in 5-6
sentences

A researcher conducted a goodness-of-fit test by using
categorical data. Her data consists of 4 categories. Her null
hypothesis states that the data occur in each category with the
same frequency. If she found the test statistic χ2=χ2=12.03:
What is the degree of freedom of the χ2χ2 statistic? 3
What is the P-value of the goodness-of-fit test? (Round
to 3 decimals)

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