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what is the slope?
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m = (y2-y1)/(x2-x1)
= (3-8)/ (1-2)
=-5/-1
ans = 5
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Florida National University CH 8 Purpose of Correlation and Regression HW
Objective: In this assignment, you will create, describe and analyze a correlation Analysis Method, this technique is use ...
Florida National University CH 8 Purpose of Correlation and Regression HW
Objective: In this assignment, you will create, describe and analyze a correlation Analysis Method, this technique is use to quantify the association between two continuous variables; you will be able to choose any variable and compare them as the example proportionate it in your textbook. ASSIGNMENT GUIDELINES (10%): Students will judgmentally evaluate the readings from Chapter 8 and 9 on your textbook and from the article assigned for week 5. The Purpose of Correlation and regression analysis are related in the sense that both deal with relationships among variables. The correlation coefficient is a measure of linear association between two variables. Values of the correlation coefficient are always between -1 and +1. A correlation coefficient of +1 indicates that two variables are perfectly related in a positive linear sense, a correlation coefficient of -1 indicates that two variables are perfectly related in a negative linear sense, and a correlation coefficient of 0 indicates that there is no linear relationship between the two variables. For simple linear regression, the sample correlation coefficient is the square root of the coefficient of determination, with the sign of the correlation coefficient being the same as the sign of b1, the coefficient of x1 in the estimated regression equation. Neither regression nor correlation analyses can be interpreted as establishing cause-and-effect relationships. They can indicate only how or to what extent variables are associated with each other. The correlation coefficient measures only the degree of linear association between two variables. Any conclusions about a cause-and-effect relationship must be based on the judgment of the analyst. You need to develop a 3-4-page paper long including title page and references page reproducing your understanding and capability to relate the readings to Correlation Analysis. Each paper must be typewritten with 12-point font and double-spaced with standard margins. Follow APA Style 7th edition format when referring to the selected articles and include a reference page. EACH PAPER SHOULD INCLUDE THE FOLLOWING: 1. Introduction (25%) Provide a brief synopsis of the meaning (not a description) of each Chapter and articles you read, in your own words. 2. Your Strategies (50%) a. Briefly define and provide examples of dependent and independent variables. b. Discussion and explain the principle of statistical adjustment to lay audience. c. Analyze and define correlation analysis and regression. 3. Conclusion (15%) Briefly summarize your thoughts & conclusion to this assignment and your appraisal of the articles and Chapter you read.How did these articles and Chapters impact your thoughts about Multivariable Methods? How this Correlation Analysis help you in relation to Multivariable Methods. Evaluation will be based on how clearly you respond to the above, in particular: a) The clarity with which you present and analyzed the strategies; b) The depth, scope, and organization of your Correlation Analysis paper; and, c) Your conclusions, including a description of the impact of these articles and Chapters on any Healthcare Organization.
UAG Statistics Type B OC Curve for The Single Sampling Plan Questions
1. Waiting times for customers in an airline reservation system are (in seconds) 953, 955, 948, 951, 957, 949, 954, 950, 9 ...
UAG Statistics Type B OC Curve for The Single Sampling Plan Questions
1. Waiting times for customers in an airline reservation system are (in seconds) 953, 955, 948, 951, 957, 949, 954, 950, 959.
a. Calculate the sample average.
b. Calculate the sample standard deviation.
2. Monthly sales for tissues in the northwest region are (in thousands) 50.001, 50.002, 49.998, 50.006, 50.005, 49.996, 50.003, 50.004.
a. Calculate the sample average.
b. Calculate the sample standard deviation.
3. Draw the type-B OC curve for the single sampling plan.
4. An electronic component in a dental x-ray system has an exponential time to failure distribution with . What are the mean and variance of the time to failure? What is the reliability at 30,000 hours?
5. A synthetic fiber is stressed by repeatedly applying a particular load. Suppose that the number of cycles to failure has an exponential distribution with mean 3,000 cycles. What is the probability that the fiber will break at 1,500 cycles? What is the probability that the fiber will break at 2,500 cycles?
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please can you do a research paper on the upper applied problem involving differential equation, if possible i want to thi ...
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please can you do a research paper on the upper applied problem involving differential equation, if possible i want to this applied problem to expand to different fields such as mathematics, engineering and sciences. please include any formulas or sciences that are related to this topic "Aircraft Guidance in a Crosswind". basic format of a research paper.
Business Statistics Assignment
Business Statistics Project Assignment
Write a minimum 4-page report explaining the results from your analysis of the ROI ...
Business Statistics Assignment
Business Statistics Project Assignment
Write a minimum 4-page report explaining the results from your analysis of the ROI of Busine ss Majors and Engineering Majors. Use your results from each week’s assignment to make this report.
This report should include:
A detailed description of the data used in this analysis – specifically explain what the data in each column represents.
A detailed explanation of any information learned about:
School Type for each major;
The Cost for each major;
The 30 Year ROI for each major;
The Annual % ROI for each major.
Explanations should be supported with the results obtained from your work in previous weeks.
Finally, answer the following questions and support your answer with your results.
Does there appear to be a particular major that gives a better ROI? Why or Why not?
Given that we are using statistical inference to make our conclusions, is it guaranteed that the major you choose that gave a better ROI for this sample will always have a better ROI than the other major? Explain your reasoning.
**Below are the questions that were answered for each assignment.Also, attached are my weeks of ROI (results from each week’s assignment) and the ROI Excel spreadsheet used for each assignment.**
Attachment 1
For these project assignments throughout the course you will need to reference the data in the ROI Excel spreadsheet.
In this data set – the ROI data set - for 2 different majors (Business and Engineering), you are given a sample of the 20 best colleges according to ROI (ROI = Return on Investment) and their ‘School Type’, ‘Cost’, ’30-Year ROI’, and ‘Annual % ROI’.
For each of the 2 majors create a pie chart using the column ‘School Type’. Comment on your results.
For each of the 2 majors create a frequency distribution and histogram using the column ‘Annual % ROI’. Group with starting at 6% (0.06), ending at 11% (0.11), and go by 0.5% (0.005).
For the histograms title your charts “Histogram Business Major: Annual % ROI” for Business majors and “Histogram Engineering Major: Annual % ROI” for Engineering Majors. Comment on your results.
Attachment 2
For each of the 2 majors calculate the mean, median, minimum, maximum, range, and standard deviation for the columns ‘Cost’ and ’30-Year ROI’.
By hand or with Excel, for each of the 2 majors calculate the probability that a college picked from the column for ‘School Type’ is ‘Private’.
By hand or with Excel, for each of the 2 majors find the probability that a college with the ‘School Type’ ‘Private’ has a ’30-Year ROI’ between $1,500,000 and $1,800,000.
Attachment 3
If we select 7 colleges from a major and then record whether they are of ‘School Type’ ‘Private’ or not, is this experiment a binomial one? Why or why not?
For each of the 2 majors determine if the ‘Annual % ROI’ appears to be normally distributed. Consider the shape of the histogram and the measures of central tendency (mean and median) to justify your results. Report on each of these with charts and calculations to justify your answers.
Attachment 4
For each of the 2 majors consider the ‘School Type’ column. Assuming the requirements are met, construct a 90% confidence interval for the proportion of the schools that are ‘Private’. Be sure to interpret your results.
For each of the 2 majors construct a 95% confidence interval for the mean of the column ‘Annual % ROI’. Be sure to interpret your results.
Attachment 5
For each of the 2 majors test the hypothesis at the 5% significance level:
The mean ‘Cost’ for a college is $160,000. Be sure to interpret your results.
For Business versus Engineering majors conduct a two sample test of the hypothesis at the 10% significance level (assume the variances are not equal):
The average ’30-Year ROI’ for Business majors is less than for Engineering Majors. Be sure to interpret your results
Attachment 6
Using the ROI data set:
For each of the two majors:
Draw the scatter diagram of Y = ‘Annual % ROI’ against X = ‘Cost’.
Obtain b0 and b1 of the regression equation defined as y ? = b0 + b1X and the coefficient of determination (r2) from the Excel regression output.
Draw the fitted regression line on the scatter diagram.
Calculate the estimated ‘Annual % ROI’ when the ‘Cost’ (X) is $160,000.
Test the hypothesis:
oH0: ?1 = 0
oHa: ?1 ? 0
Write a paragraph or more on any observations you make about the regression estimates, coefficient of determination, the plots, and the results of your hypothesis tests.
Please provide original work.No plagarizing.If you have any questions please let me know.
MMPA6910 Walden university The public policy process discussion
The first step in the research process is to determine an area in need of exploration. In public administration, policy an ...
MMPA6910 Walden university The public policy process discussion
The first step in the research process is to determine an area in need of exploration. In public administration, policy analysis, or nonprofit management this starts with identifying a problem or issue within the field. For this Discussion and in preparation for your Capstone Project, you will consider a problem or issue that you think needs to be addressed in public administration, public policy, and/or nonprofit management.Post a description of the problem or issue you selected. Explain why you think this problem needs to be addressed and how it is significant to public administration, public policy, or nonprofit management.Required ResourcesReadingsBooth, W. C., Colomb, G. G., Williams, J. M., Bizup, J. & Fitzgerald, W. T. (2016). The craft of research (4th ed.). Chicago, IL: The University of Chicago Press.Prologue, “Becoming a Researcher” (pp. 3–8)This section explores the importance and role of research for practicing professionals. It also examines the role of planning in conducting research and reporting findings.Chapter 1, “Thinking in Print: The Uses of Research, Public and Private” (pp. 9–15)In this chapter, the authors describe the role of research in daily life. In addition, the authors discuss the importance and role of capturing research findings in a written format.Machi, L. A., & McEvoy, B. T. (2016). The literature review: Six steps to success (3rd ed.). Thousand Oaks, CA: Corwin.“Preface” (pp. xiii–xv)This section introduces the features of the book as well as the additions to this edition of the book.“Introduction” (pp. 1–35)In this section, the authors discuss the purpose of literature reviews and provide an overview of the literature review process. Also, the authors discuss key components to a successful literature review—inquiry, ethics, planning, and preparation.Chapter 1, “Step One. Select a Topic” (pp. 17-35)This chapter explains step 1 of the literature review process, “selecting a topic.” The chapter also includes the four tasks associated with this step and provides strategies for completing each task.Change.org. (n.d.). Retrieved August 28, 2014, from http://www.change.org/Change.org is a Web site used worldwide to empower people to create change. The Web site can also be used to explore current trends and issues across the world. These trends and issues can also inspire researchers and support the need for research in public administration.Walden University. (n.d.-b). Vision and mission statements. Retrieved August 28, 2014, from http://www.waldenu.edu/About-Us/33598.htmThis Web page provides the vision and mission statements of Walden University and each of its colleges and schools.Document: Capstone Project Guidelines (PDF)Optional ResourcesChen, H. (Ed.). (2005). Practical program evaluation. Thousand Oaks, CA: Sage.Chapter 3, “A Practical Evaluation Taxonomy: Selecting the Evaluation Approach That Works” (pp. 45–70)Majchrzak, A. (Ed.). (1984). Methods for policy research. Thousand Oaks, CA: Sage.Chapter 2, “Preparing for a Policy Research Study” (pp. 23–42)Walden University. (n.d.-a). Scholars of change. Retrieved August 28, 2014, from http://www.waldenu.edu/about/social-change/scholars-of-changeThis website provides links to Scholars of Change videos from the past five years. While this resource is optional, you are encouraged to visit the site and explore videos to see how students are solving problems and making a difference within their own communities.Walliman, N. (Ed.). (2006). Social research methods. London, England: Sage.
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Florida National University CH 8 Purpose of Correlation and Regression HW
Objective: In this assignment, you will create, describe and analyze a correlation Analysis Method, this technique is use ...
Florida National University CH 8 Purpose of Correlation and Regression HW
Objective: In this assignment, you will create, describe and analyze a correlation Analysis Method, this technique is use to quantify the association between two continuous variables; you will be able to choose any variable and compare them as the example proportionate it in your textbook. ASSIGNMENT GUIDELINES (10%): Students will judgmentally evaluate the readings from Chapter 8 and 9 on your textbook and from the article assigned for week 5. The Purpose of Correlation and regression analysis are related in the sense that both deal with relationships among variables. The correlation coefficient is a measure of linear association between two variables. Values of the correlation coefficient are always between -1 and +1. A correlation coefficient of +1 indicates that two variables are perfectly related in a positive linear sense, a correlation coefficient of -1 indicates that two variables are perfectly related in a negative linear sense, and a correlation coefficient of 0 indicates that there is no linear relationship between the two variables. For simple linear regression, the sample correlation coefficient is the square root of the coefficient of determination, with the sign of the correlation coefficient being the same as the sign of b1, the coefficient of x1 in the estimated regression equation. Neither regression nor correlation analyses can be interpreted as establishing cause-and-effect relationships. They can indicate only how or to what extent variables are associated with each other. The correlation coefficient measures only the degree of linear association between two variables. Any conclusions about a cause-and-effect relationship must be based on the judgment of the analyst. You need to develop a 3-4-page paper long including title page and references page reproducing your understanding and capability to relate the readings to Correlation Analysis. Each paper must be typewritten with 12-point font and double-spaced with standard margins. Follow APA Style 7th edition format when referring to the selected articles and include a reference page. EACH PAPER SHOULD INCLUDE THE FOLLOWING: 1. Introduction (25%) Provide a brief synopsis of the meaning (not a description) of each Chapter and articles you read, in your own words. 2. Your Strategies (50%) a. Briefly define and provide examples of dependent and independent variables. b. Discussion and explain the principle of statistical adjustment to lay audience. c. Analyze and define correlation analysis and regression. 3. Conclusion (15%) Briefly summarize your thoughts & conclusion to this assignment and your appraisal of the articles and Chapter you read.How did these articles and Chapters impact your thoughts about Multivariable Methods? How this Correlation Analysis help you in relation to Multivariable Methods. Evaluation will be based on how clearly you respond to the above, in particular: a) The clarity with which you present and analyzed the strategies; b) The depth, scope, and organization of your Correlation Analysis paper; and, c) Your conclusions, including a description of the impact of these articles and Chapters on any Healthcare Organization.
UAG Statistics Type B OC Curve for The Single Sampling Plan Questions
1. Waiting times for customers in an airline reservation system are (in seconds) 953, 955, 948, 951, 957, 949, 954, 950, 9 ...
UAG Statistics Type B OC Curve for The Single Sampling Plan Questions
1. Waiting times for customers in an airline reservation system are (in seconds) 953, 955, 948, 951, 957, 949, 954, 950, 959.
a. Calculate the sample average.
b. Calculate the sample standard deviation.
2. Monthly sales for tissues in the northwest region are (in thousands) 50.001, 50.002, 49.998, 50.006, 50.005, 49.996, 50.003, 50.004.
a. Calculate the sample average.
b. Calculate the sample standard deviation.
3. Draw the type-B OC curve for the single sampling plan.
4. An electronic component in a dental x-ray system has an exponential time to failure distribution with . What are the mean and variance of the time to failure? What is the reliability at 30,000 hours?
5. A synthetic fiber is stressed by repeatedly applying a particular load. Suppose that the number of cycles to failure has an exponential distribution with mean 3,000 cycles. What is the probability that the fiber will break at 1,500 cycles? What is the probability that the fiber will break at 2,500 cycles?
Aircraft Guidance in a Crosswind
please can you do a research paper on the upper applied problem involving differential equation, if possible i want to thi ...
Aircraft Guidance in a Crosswind
please can you do a research paper on the upper applied problem involving differential equation, if possible i want to this applied problem to expand to different fields such as mathematics, engineering and sciences. please include any formulas or sciences that are related to this topic "Aircraft Guidance in a Crosswind". basic format of a research paper.
Business Statistics Assignment
Business Statistics Project Assignment
Write a minimum 4-page report explaining the results from your analysis of the ROI ...
Business Statistics Assignment
Business Statistics Project Assignment
Write a minimum 4-page report explaining the results from your analysis of the ROI of Busine ss Majors and Engineering Majors. Use your results from each week’s assignment to make this report.
This report should include:
A detailed description of the data used in this analysis – specifically explain what the data in each column represents.
A detailed explanation of any information learned about:
School Type for each major;
The Cost for each major;
The 30 Year ROI for each major;
The Annual % ROI for each major.
Explanations should be supported with the results obtained from your work in previous weeks.
Finally, answer the following questions and support your answer with your results.
Does there appear to be a particular major that gives a better ROI? Why or Why not?
Given that we are using statistical inference to make our conclusions, is it guaranteed that the major you choose that gave a better ROI for this sample will always have a better ROI than the other major? Explain your reasoning.
**Below are the questions that were answered for each assignment.Also, attached are my weeks of ROI (results from each week’s assignment) and the ROI Excel spreadsheet used for each assignment.**
Attachment 1
For these project assignments throughout the course you will need to reference the data in the ROI Excel spreadsheet.
In this data set – the ROI data set - for 2 different majors (Business and Engineering), you are given a sample of the 20 best colleges according to ROI (ROI = Return on Investment) and their ‘School Type’, ‘Cost’, ’30-Year ROI’, and ‘Annual % ROI’.
For each of the 2 majors create a pie chart using the column ‘School Type’. Comment on your results.
For each of the 2 majors create a frequency distribution and histogram using the column ‘Annual % ROI’. Group with starting at 6% (0.06), ending at 11% (0.11), and go by 0.5% (0.005).
For the histograms title your charts “Histogram Business Major: Annual % ROI” for Business majors and “Histogram Engineering Major: Annual % ROI” for Engineering Majors. Comment on your results.
Attachment 2
For each of the 2 majors calculate the mean, median, minimum, maximum, range, and standard deviation for the columns ‘Cost’ and ’30-Year ROI’.
By hand or with Excel, for each of the 2 majors calculate the probability that a college picked from the column for ‘School Type’ is ‘Private’.
By hand or with Excel, for each of the 2 majors find the probability that a college with the ‘School Type’ ‘Private’ has a ’30-Year ROI’ between $1,500,000 and $1,800,000.
Attachment 3
If we select 7 colleges from a major and then record whether they are of ‘School Type’ ‘Private’ or not, is this experiment a binomial one? Why or why not?
For each of the 2 majors determine if the ‘Annual % ROI’ appears to be normally distributed. Consider the shape of the histogram and the measures of central tendency (mean and median) to justify your results. Report on each of these with charts and calculations to justify your answers.
Attachment 4
For each of the 2 majors consider the ‘School Type’ column. Assuming the requirements are met, construct a 90% confidence interval for the proportion of the schools that are ‘Private’. Be sure to interpret your results.
For each of the 2 majors construct a 95% confidence interval for the mean of the column ‘Annual % ROI’. Be sure to interpret your results.
Attachment 5
For each of the 2 majors test the hypothesis at the 5% significance level:
The mean ‘Cost’ for a college is $160,000. Be sure to interpret your results.
For Business versus Engineering majors conduct a two sample test of the hypothesis at the 10% significance level (assume the variances are not equal):
The average ’30-Year ROI’ for Business majors is less than for Engineering Majors. Be sure to interpret your results
Attachment 6
Using the ROI data set:
For each of the two majors:
Draw the scatter diagram of Y = ‘Annual % ROI’ against X = ‘Cost’.
Obtain b0 and b1 of the regression equation defined as y ? = b0 + b1X and the coefficient of determination (r2) from the Excel regression output.
Draw the fitted regression line on the scatter diagram.
Calculate the estimated ‘Annual % ROI’ when the ‘Cost’ (X) is $160,000.
Test the hypothesis:
oH0: ?1 = 0
oHa: ?1 ? 0
Write a paragraph or more on any observations you make about the regression estimates, coefficient of determination, the plots, and the results of your hypothesis tests.
Please provide original work.No plagarizing.If you have any questions please let me know.
MMPA6910 Walden university The public policy process discussion
The first step in the research process is to determine an area in need of exploration. In public administration, policy an ...
MMPA6910 Walden university The public policy process discussion
The first step in the research process is to determine an area in need of exploration. In public administration, policy analysis, or nonprofit management this starts with identifying a problem or issue within the field. For this Discussion and in preparation for your Capstone Project, you will consider a problem or issue that you think needs to be addressed in public administration, public policy, and/or nonprofit management.Post a description of the problem or issue you selected. Explain why you think this problem needs to be addressed and how it is significant to public administration, public policy, or nonprofit management.Required ResourcesReadingsBooth, W. C., Colomb, G. G., Williams, J. M., Bizup, J. & Fitzgerald, W. T. (2016). The craft of research (4th ed.). Chicago, IL: The University of Chicago Press.Prologue, “Becoming a Researcher” (pp. 3–8)This section explores the importance and role of research for practicing professionals. It also examines the role of planning in conducting research and reporting findings.Chapter 1, “Thinking in Print: The Uses of Research, Public and Private” (pp. 9–15)In this chapter, the authors describe the role of research in daily life. In addition, the authors discuss the importance and role of capturing research findings in a written format.Machi, L. A., & McEvoy, B. T. (2016). The literature review: Six steps to success (3rd ed.). Thousand Oaks, CA: Corwin.“Preface” (pp. xiii–xv)This section introduces the features of the book as well as the additions to this edition of the book.“Introduction” (pp. 1–35)In this section, the authors discuss the purpose of literature reviews and provide an overview of the literature review process. Also, the authors discuss key components to a successful literature review—inquiry, ethics, planning, and preparation.Chapter 1, “Step One. Select a Topic” (pp. 17-35)This chapter explains step 1 of the literature review process, “selecting a topic.” The chapter also includes the four tasks associated with this step and provides strategies for completing each task.Change.org. (n.d.). Retrieved August 28, 2014, from http://www.change.org/Change.org is a Web site used worldwide to empower people to create change. The Web site can also be used to explore current trends and issues across the world. These trends and issues can also inspire researchers and support the need for research in public administration.Walden University. (n.d.-b). Vision and mission statements. Retrieved August 28, 2014, from http://www.waldenu.edu/About-Us/33598.htmThis Web page provides the vision and mission statements of Walden University and each of its colleges and schools.Document: Capstone Project Guidelines (PDF)Optional ResourcesChen, H. (Ed.). (2005). Practical program evaluation. Thousand Oaks, CA: Sage.Chapter 3, “A Practical Evaluation Taxonomy: Selecting the Evaluation Approach That Works” (pp. 45–70)Majchrzak, A. (Ed.). (1984). Methods for policy research. Thousand Oaks, CA: Sage.Chapter 2, “Preparing for a Policy Research Study” (pp. 23–42)Walden University. (n.d.-a). Scholars of change. Retrieved August 28, 2014, from http://www.waldenu.edu/about/social-change/scholars-of-changeThis website provides links to Scholars of Change videos from the past five years. While this resource is optional, you are encouraged to visit the site and explore videos to see how students are solving problems and making a difference within their own communities.Walliman, N. (Ed.). (2006). Social research methods. London, England: Sage.
4 pages
Unit3projectgraphsandfunctions
John makes DVDs of his friend’s shows. He has realized that, because of his fixed costs, his average cost per DVD depend ...
Unit3projectgraphsandfunctions
John makes DVDs of his friend’s shows. He has realized that, because of his fixed costs, his average cost per DVD depends on the number of DVDs he ...
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