Question

1.
What are the limitations of chi-square? Explain

2. Explain contingency table analysis and how is it
applied?

3. How many types of test are considered non-parameteric data
and briefly explain each?

4. What are the elements and assumptions of the Wilcoxon
Signed Rank Test?

5. What are the steps needed to calculate the Wilcoxon Rank
Sum Test?

6. Explain the summary of the chi-square steps.

7. Describe the Kruskal-Wallis Test

Answer #1

Limitations for chi square-:

Chi-square gives erroneous result when the frequency of any particular cells of table is less then 5, because chi square is sensituve towards small frequency.

chi-square get highly affected by sample size (n). As if we increase sample size, absolute differences becomes smaller and smaller proportion of the expected value. What this means to say that may be a strong association may not come up as significant if the sample size is small, and same for large samples, we may find statistical significance when the findings may be small and uninteresting, i.e., the findings may not significant, although they are statistically significant.

not hand Writing
please
1. Define the following terms:
A. Contingency table
B. Chi-square test
2. List the assumptions required to perform a chi-square
test?

How is the chi-square independence test similar to the
goodness-of-fit test? How is it different?
What is the difference between McMemar’s Test and the
Chi-squared test for 2 by 2 table.
Question 2
A clinic administers two drugs to two groups of randomly
assigned patients to cure the same disease: 70 patients received
Drug 1 and 80 patients received Drug 2. The following table gives
the information about the number of patients cured and the once not
cured by each...

How different assumptions of error influence regression
analysis? Explain the difference between least square method and
sum of absolute errors method in regression analysis.

14. The Wilcoxon Signed Rank test is used _________
(A)
Only with independent samples
(B)
Only in matched pairs samples (dependent samples)
(C)
To test for randomness
(D)
As an alternative to the Kruskal-Wallis test
15. Which of the following test must be two-sided?
(A)
Wilcoxon Signed Rank
(B)
Kruskal-Wallis
(C)
Runs test
(D)
Sign test
16. In testing for the difference between two populations, it is
possible to use _________
(A)
The Wilcoxon Rank-Sum test
(B)
The Sign test...

by utilizing this chi-Square Test answer the following question
and explain what the table means.
Are Americans in favor of the use of unmanned drones by
police agencies in the United States?
Table 4
Chi-Square Test for Association: Gender, Opinion
Gender
-1
0
1
Total
39
17
44
100
Male
39.2
25.13
35.68
0.0010
2.6278
1.9409
39
33
27
99
Female
38.8
24.87
35.32
0.0010
2.6544
1.9605
Total
78
50
71
199
Note. Possible responses (-1, 0, and 1). -1...

Write a summary of your understanding of the study (below
abstract ). In your ownsummary (or your first comment), you need to
refer to the article and explain what the researchers did. You do
not have to compute anything, but explain the idea central to the
study.
Abstract: The Chi-square statistic is a non-parametric
(distribution-free) tool designed to analyze group differences when
the dependent variable is measured at a nominal level. Like all
non-parametric statistics, the Chi-square is robust with...

1-What is Retailing? Explain the Characteristics of Retailing.
?
2-Discuss any 3Major Types of Corporate Retail
Organizations.?
3-Explain briefly the steps in Strategic retail planning
process. ?
4-What are the difference between the elements of Communication
Mix?

Part
1
What assumptions need
to be satisfied in order to perform ANOVA? Select all that
apply.
a) The observations from each group (or treatment
or population) should adhere to
approximately normal distributions.
b) The variances (or standard deviations) of the
groups (or treatments or
populations) should be the same.
c) The samples must be simple random samples, and
independent of each other.
d) The sample sizes for the groups must be exactly
the same, and also happy.
Part 2...

Assessment Module 9 – Marginal Analysis
Please create a tab in your Excel Workbook and name it “Module 9
Marginal Analysis.” You have same basic templates in your
Resources workbook, but you may need to modify
these to fit the individual business problem. I am evaluating your
professional ability to do so, and to create professional models
and reports, so take your time, think through a logical, clear,
well-structured, well-formatted model. Remember, assumption tables
(like T-accounts) are your friends!
Be...

Please answer the following Case
analysis questions
1-How is New Balance performing compared to its primary rivals?
How will the acquisition of Reebok by Adidas impact the structure
of the athletic shoe industry? Is this likely to be favorable or
unfavorable for New Balance?
2- What issues does New Balance management need to address?
3-What recommendations would you make to New Balance Management?
What does New Balance need to do to continue to be successful?
Should management continue to invest...

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