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Have appropriate interaction plots and explain whether the interaction is significant or not. Develop the final regression model and have relevant contour plot from your final model. Analyze the residual to check whether there are any potential concerns about the validity of the assumptions.

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Stat 490 Group project

Due 04/26

In experimental design, designing an experiment is as important as analyzing the results. Through the semester we have learned 4 ways to design an experiment

  1. Design an experiment that is BIBD.
  2. Design an experiment that is an optimal design.

For these two types of designs you need to use R language to help you unless for simple cases. Even for the same input, you may end up different designs if you rerun the code. For example, the runs in the same treatment group may end up with different blocks. Or you may end up with different subset of the total runs that is still optimal.

  1. Design a blocked experiment with confounding structure.
  2. Design a fractional experiment with aliases structure.

For these two types of designs you can use either R or Excel to help you design the experiment. With the same confounding structure, same aliases structure, you will end up with the same design.

In this group project, you are asked to design 4 experiments and analyze the results. There is an excel file called “group_response.csv” on canvas, with two variables  and  in it. These will be the response variables for your analysis below.

Experiment 1

  1. Design a BIBD that has 6 treatment groups and 10 blocks. What is the number of runs in each treatment group? What is the number of runs in each block? What is the value of ?
  2. If the response variable is (sorted by treatment and block), analyze the results. Is there a significant main effect at treatment group? Is there a significant block effect?
  3. Analyze the residual to check whether there are any potential concerns about the validity of the assumptions.

 

Experiment 2

  1. Suppose that factor A has 3 levels, factor B and C each has 2 levels. Assuming you only have budget to have 30 runs, design a D-optimal experiment with these 3 factors such that a model with all first order term and second order term for A can be estimated, and there are 3 replicates in each treatment combination.
  2. If the response variable again is (sorted by treatment A, B, C), analyze the results. Is there a significant main effect at factor A, B or C?
  3. Have appropriate interaction plots and explain whether the interaction is significant or not. Develop the final regression model and have relevant contour plot from your final model.
  4. Analyze the residual to check whether there are any potential concerns about the validity of the assumptions.

 

Experiment 3

  1. Design a blocked experiment. Choose two three order or higher order interactions to be confounded with the blocks. To choose the confounded interaction terms, use the names from every member’s name. Pick one distinct letter (A-E) from each person’s name and form the interaction.
  2. If the response variable is (sorted by the order from the output from conf.design() function, that is the order of Blocks, E, D, C, B, A), analyze the results. Identify the significant factors and develop your model.
    1. Be careful that when you run Yates analysis the data should be in standard order, while the output from conf.design() function is not in standard order.
  3. Is there a significant block effect?
  4. Write down the complete confounding structure. Confirm the confounding structure using SS.
  5. Analyze the residual to check whether there are any potential concerns about the validity of the assumptions. Analyze dispersion effect if there is any.

Experiment 4

  1. Design a To choose the generators for the design, use the names from every member’s name. Pick one distinct letter (A-G) from each person’s name and form the generator.
  2. If the response variable again is , analyze the results. Identify the potential significant factors and develop your model.
    1. Use the same order as your data in experiment 3, that is you can just add two more factors to your experiment 3 data using the generators you have
    2. Be careful that conf.design() function is based on 0/1 coding, while defining relation is based on -1/1 coding.
  3. Write down the aliases structure for the main effects and two order interactions (ignore higher order interactions) and confirm the resolution of the design.
  4. Analyze the residual to check whether there are any potential concerns about the validity of the assumptions. Analyze dispersion effect if there is any.

 

 

Write a paper (4-6 pages) examining the Civil Rights Movement in American history using a number of primary sources provided by the instructor. In four to six pages, the paper should attempt to address the struggles, problems, resistance to, and goals of the movement.

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HIST 1493 the Civil Rights Movement in American history.

Your assignment is to write a paper (4-6 pages) examining the Civil Rights Movement in American history using a number of primary sources provided by the instructor. In four to six pages, the paper should attempt to address the struggles, problems, resistance to, and goals of the movement.

The entire purpose of the study of history is to learn from the past. Not to idolize it, not to romanticize it, not to tailor it to fit our world view, but to learn from it. History is messy – it is never as neat as a movie or even a classroom exam might make it seem. Our present is shaped by the past, and while it is useful to understand the past, one must never want to live there. 2020 has seen extraordinary times – a global pandemic, protests and upheaval in American life, and no doubt these events will be discussed in a future history class. Yet these events are not new, and comparisons with history could prove eye opening. As debates over the questions of race touch not only American society but even conversations here at Oklahoma State University (such as Friday, June 18, 2020’s vote to rename Murray Hall), it would be helpful to understand the history of race in America.

Let a, b and q be positive integers. Prove that a and b have the same remainder when divided by q if and only if a − b is a multiple of q.

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Discrete Math Final Spring 2023

   Yoram Sagher

Your solutions should be submitted through Canvas in .pdf in 150 minutes.

1. Find all x so that |x 1| 3|x 2| 7|x 4| 16

2. Prove that if r1 an r2 are rational numbers and r1 r2 then there are irrational numbers , x1 and x2 so that r1 x1 x2 r2

3. Let a, b and q be positive integers. Prove that a and b have the same remainder when divided by q if and only if a − b is a multiple of q

4. Prove that 447 is an irrational number

5. Let a and b be positive integers, we denote by gcda, b the largest integer that divides both a and b. Prove that if k ≤ a b is an integer, then gcda, b gcda − kb, b

6. Find integers x, y do that x 1001 y 385 gcd1001, 385.

7. Prove that if p is a prime number and x, y, z are positive integers and p divides x y z then it divides at least one of x, y, z.

8. We denote by a ∨ b the larger of the two numbers, a and b, and by a ∧ b the smaller of the two numbers. Prove that
a ∨ b a b
2 |a − b|
2 and a ∧ b a b
2 − |a − b|
2 .

9. Prove that if p 2 is a prime number then 2p−1 − 1 is a multiple of p.

10. Prove that if p is a prime number and n a positive integer then n p − n is divisible by p.

11. Prove that
∑
k1
n
k n
k n2n−1

12. Prove that
∑
k1
n
−1k k n
k 0.

13. Prove that
n − 1
k − 1 n − 1
k n
k

14. Prove that

n − 2

k − 2 2 n − 2
k − 1 n − 2
k n
k

15. Let a 0 and b 0. loga b is the number so that aloga b b Prove that  loga blogb a 1

What would you predict the patient’s acid-base status to be? ˆWhat is the origin of their acid-base state? ˆHow does the patient’s condition lead to their acid-base disturbance? Be as specific as you can about the source of the disturbance.

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Systemic Physiology Davenports Questions

1. A 15-year-old with cystic fibrosis (very thick, sticky mucus builds up in the lungs) complains of an increased cough productive of green sputum over the last week. They also complain of being increasingly short of breath, and they are noticeably wheezing on physical examination. Urinalysis reveals increased H+ content in their urine.

  • ˆWhat would you predict the patient’s acid-base status to be (acidotic or alkalotic)?
  • ˆWhat is the origin (respiratory or metabolic) of their acid-base state?
  • How does the patient’s condition lead to their acid-base disturbance? Be as specific as you can about the source of the disturbance.
  • ˆIs the patient compensating for the disturbance? If so, how?
  • Choose the point that corresponds best on the Davenport diagram.

2. A 24-year-old college student is complaining of a week-long history of bloody-watery diarrhea. You notice their breathing seems rather quick, but in all other respects, they appear healthy.

  • What would you predict the patient’s acid-base status to be?
  • ˆWhat is the origin of their acid-base state?
  • ˆHow does the patient’s condition lead to their acid-base disturbance? Be as specific as you can about the source of the disturbance.
  • ˆIs the patient compensating for the disturbance? If so, how?
  • Choose the point that corresponds best on the Davenport diagram.

3. A 27-year-old has been sick with the flu for the past week, vomiting several times every day. They are having a difficult time keeping solids and liquids down, and have become severely dehydrated. After fainting at work, they were taken to a local clinic, where an IV was placed to help rehydrate them. Their coworkers reported they were worried about shallow respiration as they revived the individual from the faint.

  • ˆWhat would you predict the patient’s acid-base status to be?
  • ˆWhat is the origin of their acid-base state?
  • ˆHow does the patient’s condition lead to their acid-base disturbance? Be as specific as you can about the source of the disturbance.

What is the difference between Emerging and Re-emerging Infectious Diseases? What is a broad-spectrum drug? What is a compromised host? What is an index case? Why would we need to know the index case for the purpose of disease containment?

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Module 9: Global Systems Level: Our World

 Cheat sheets for this module:

  1. Survival Analysis
  2. Field Epidemiology Terms
  3. Emerging Infectious Diseases
  4. Choose the type of Epidemic

Biostatistics – Survival Analysis

Understand the following terms associated with Survival Analysis

Define the following terms:

Survival Analysis  

 
Survival Function

 

Field Epidemiology Terms

Define the following terms:

Hyperendemic Level of Occurrence  

 
Sporadic Level of Occurrence
Descriptive Phase of Outbreak Investigation
Analytic Phase of Outbreak Investigation
Epidemic Curve
Attack Rates
Secondary Attack Rates
Common Source Epidemics
Point Source Epidemics
Continuing Epidemics
Intermittent Epidemics
Propagated Epidemics
Mixed Epidemics

What is the difference between an Outbreak and a Cluster in terms of the epidemiology?

 

Emerging Infectious Diseases

50 years ago, people thought we were approaching the end of what had been the war against infectious diseases that had occurred since the dawn of humanity.  However, recent evidence has shown that not only are we constantly in danger of “new” diseases, but are still facing issues with traditional diseases that have increased resistance to available drugs.  Answer the following questions.

What is the difference between Emerging and Re-emerging Infectious Diseases?

What is a broad-spectrum drug?

What is a compromised host?

What is an index case?  Why would we need to know the index case for the purpose of disease containment?

What is a nosocomial infection?  Why is it such a concern for the field of Public Health?

What is transformation (in terms of bacteria) and how does it play a role in treatment of bacterial infections?

How would you rate this firm’s commitment to corporate social responsibility and sustainability? Provide as much detailed evidence as possible. How has this firm’s commitment to corporate social responsibility and sustainability impacted its financial performance and image?

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Publicly traded stock company

Background

Select a publicly listed company from the common top-level (NAIC) industry classification.

NAIC Code Description
11 Agriculture, Forestry, Fishing, and Hunting
21 Mining, Quarrying, and Oil and Gas Extraction
22 Utilities
23 Construction
31-33 Manufacturing
42 Wholesale Trade
44-45 Retail Trade
48-49 Transportation and Warehousing
51 Information
52 Finance and Insurance
53 Real Estate and Rental and Leasing
54 Professional, Scientific, and Technical Services
55 Management of Companies and Enterprises
56 Administrative and Support and Waste Management and Remediation Services
61 Educational Services
62 Health Care and Social Assistance
71 Arts, Entertainment, and Recreation
72 Accommodation and Food Services
81 Other Services (except Public Administration)
92 Public Administration

 

Choose a company that has publicly traded stock.

Much of the information you will need for this project can be obtained from the following sources:

Regulatory filings of the company: 10-Q and 10-K reports, Edgar Online

Company research: Yahoo! Finance, Wall Street Journal Online, Reuter’s Financial, Hoovers.com

 

Questions to Answer

  • How would you rate this firm’s commitment to corporate social responsibility and sustainability? Provide as much detailed evidence as possible.
  • How has this firm’s commitment to corporate social responsibility and sustainability impacted its financial performance and image?

 

What is the potential impact of caffeine on athletes? How is nutrition the key to sports performance?

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Post Discussion: Chapter 10 and Reply to a Classmate

44 unread replies.1010 replies.

1. Watch the following videos.

2. From the videos above, answer the following questions:

  1. What is the potential impact of caffeine on athletes?
  2. How is nutrition the key to sports performance?

What is the probability that a person is divorced and has a bachelor’s degree? What is the probability that someone known to have an advanced degree is married with spouse present?

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Census Education

Using the data in the Excel file Census Education Data, construct a joint probability distribution for marital status and educational status. You can make diagram in excel

  1. What is the probability that a person is divorced and has a bachelor’s degree?
  2. What is the probability that someone known to have an advanced degree is married with spouse present?
  3. What is the probability that an individual who is known to have never married has at least an associate’s degree?

Why do you think that race and ethnicity affect life chances in so many different societies? Discuss the ways in which each of the other components of the demographic transition lead up to and help explain the family and household transition.

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Sociology Question

Why do you think that race and ethnicity affect life chances in so many different societies?

Discuss the ways in which each of the other components of the demographic transition lead up to and help explain the family and household transition.

The United States is one of the countries reporting that there is no governmental policy to intervene with demographic trends. The United States nonetheless has what might be thought of as implicit population policies. Describe them and their likely impact on future demographic trends in the United States.

What is the difference between a kinship unit and a consumption unit, and why is the difference important to an understanding of the family and household transition?

What do you believe will be the single most important demographic issue with which the world must cope over the next half century, and how do you think this issue should be dealt with?

According to the author what is Problem Solver Profiles (PSPs). How the five different decision-making archetypes help you in improving decision-making and problem-solving skills? Explain in relation with the text you learnt in the course.

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Decision Making and Problem Solving (MGT 312)

Assignment Question(s): (Marks 15)

Part-I
Read the article titled as “What Are Your Decision-Making Strengths and Blind Spots?” by Cheryl Strauss Einhorn published in Harvard Business Review, and answer the following Questions:

1. Summarize the article and explain the main issues discussed in the article. (In 500-600 words) (Marks 5)

2. According to the author what is Problem Solver Profiles (PSPs). How the five different decision-making archetypes help you in improving decision-making and problem-solving skills? Explain in relation with the text you learnt in the course. Use additional reference to support your argument. (In 400-500 words) (Marks 5)

Part-II- Critical Thinking Question

“Problem-solving is a daily task in any business. But what to do when significant problems keep coming back? Think about the last major problem you encountered. Did you take the time to discover the actual underlying cause or did you implement a quick fix that dealt with the symptoms? Discuss in detail the about the root cause analysis. (Words 400-500) (Marks 5)