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For each problem an annotated model is needed if possible as well as a list of formulas used brief

 
 

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1.In this problem and the next one, we’re going to make a very simple spam checker program by just looking ...

ooking at how likely a given email is to be spam based on the words it contains. In particular, in this problem we’re going to count how often words are present in spam emails within some set of training data (which here means a set of emails that have already been marked as spam or not spam manually). We have already started to write a function spam_score(spam_file, not_file, word), which takes in two filenames, along with a target word (a lowercase string). Both filenames refer to text files which must be in the same directory as hw07.py (we’ve provided several such files in hw07files.zip). The text files contain one email per line (really just the subject line to keep things simple) - you can assume that these emails will be a series of words separated by spaces with no punctuation. The first file contains emails that have been identified as spam, the second contains emails that have been identified as not spam. Since you haven’t learned File I/O yet, we’ve provided code that opens the two files and puts the data into two lists of strings (where each element is one line - that is, one email). You then must complete the function, so that it returns the spam score for the target word. The spam score is an integer representing the total number of times the target word occurs across all the spam emails, minus the total number of times the word occurs in not-spam emails. Convert all words to lowercase before counting, to ensure capitalization does not throw off the count.
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2.Part I. Reaction Paper Read and understand the text below. Follow outline in writing your reaction paper at least 250-750 ...

paper at least 250-750 words. 1. Introduction 2. Thesis Statement 3. Supporting details 4. Conclusion The Digital Divide: The Challenge of Technology and Equity (1) Information technology is influence the way many of us live and work today. We use the internet to look and apply for jobs, shop, conduct research, make airline reservations, and explore areas of interest. We use Email and internet to communicate instantaneously with friends and business associates around the world. Computers are commonplace in homes and the workplace. (2) Although the number of internet users is growing exponentially each year, most of the worlds population does not have access to computers of the internet. Only 6 percent of the population in the developing countries are connected to telephones. Although more than 94 percent of U.S households have telephones, only 56 percent have personal computers at home and 50 percent have internet access. The lack of what most of us would consider a basic communication necessity the telephone does not occur just in developing nations. On some Native American reservations only 60 percent of the residents have a telephone. The move to wireless connectivity may eliminate the need for telephone lines, but it does not remove the barrier to equipment costs. (3) Who has internet access? The digital divide between the populations who have access to the internet and information technology tools and those who dont is based on income, race, education, household type, and geographic location, but the gap between groups is narrowing. Eighty-five percent of households with an income over $75,000 have internet access, compared with less than 20 percent of the households with income under $15,000. Over 80 percent of college graduates use the internet as compared with 40 percent of high school completers and 13 percent of high school dropouts. Seventy-two percent of household with two parents have internet access; 40 percent of female, single parent households do. Differences are also found among households and families from different racial and ethnic groups. Fifty-five percent of white households, 31 percent of black households, 32 percent of Latino households, 68 percent of Asian or Pacific Islander households, and 39 percent of American Indian, Eskimos, or Aleut households have access to the internet. The number of internet users who are children under nine years old and persons over fifty has more than triple since 1997. Households in inner cities are less likely to have computers and internet access than those in urban and rural areas, but the differences are no more than 6 percent. (4) Another problem that exacerbates these disparities is that African-American, Latinos, and Native Americans hold few of the jobs in information technology. Women about 20 percent of these jobs and receiving fewer than 30 percent of the Bachelors degrees in computer and information science. The result is that women and members of the most oppressed ethnic group are not eligible for the jobs with the highest salaries at graduation. Baccalaureate candidates with degree in computer science were offered the highest salaries of all new college graduates. (5) Do similar disparities exist in schools? Ninety-eight percent of schools in the country are wired with at least one internet connection. The number of classrooms with internet connection differs by the income level of students. Using the percentage of students who are eligible for free lunches at a school to determine income level, we see that the higher percentage of the schools with more affluent students have wired classrooms than those with high concentrations of low-income students. (6) Access to computers and the internet will be important in reducing disparities between groups. It will require higher equality across diverse groups whose members develop knowledge and skills in computer and information technologies. The field today is overrepresented by white males. If computers and the internet are to be used to promote equality, they have to become accessible to schools cannot currently afford the equipment which needs to be updated regularly every three years or so. However, access alone is not enough; Students will have to be interacting with the technology in authentic settings. As technology has become a tool for learning in almost all courses taken by students, it will be seen as a means to an end rather than an end in itself. If it is used in culturally relevant ways, all students can benefit from its power.
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3.This first part of the Individual Research Project is an Outline and Annotated Bibliography. The Outline should provide a very brief ...

tline should provide a very brief overview of what you think you will do in the Policy Brief. The Annotated Bibliography requires you to summarize at least three peer-reviewed scholarly sources you will cite in the Policy Brief. This assignment is designed to get you thinking about your topic in a way that clearly anticipates the writing you will do for the Policy Brief. We want you to brainstorm and do a bit of research well in advance of the deadline for the Policy Brief and, most importantly, we want you to put your ideas down on paper so that we can give you feedback before writing the actual Policy Brief. In other words, we are asking you to submit an Outline and Annotated Bibliography so that we can help you write the best Policy Brief possible. Your Outline should be divided into the following five sections and should be written in complete sentences: I. Audience: Identify the audience you are addressing and consider what that audience is interested in. Who are you talking to in the Policy Brief and what does this suggest about the approach you should take? (75-100 words). II. Problem: State how you know the issue exists. What is the proof that students need to improve this skill? (125-150 words). III. Importance of Problem: Indicate why this problem matters. What are the consequences of the problem not being addressed? Why do students need to improve this skill? (100 words) IV. Solution: Identify your preferred solution. What solution will work in your context and why? (75-100 words) V. Alternative Solution: Identify at least one other possible solution. What other solutions did you consider? (75-100 words) The total length of the Outline should be between 450 and 550 words. When you submit your Outline, you must also include an Annotated Bibliography. An Annotated Bibliography is an alphabetical list of research sources that provides bibliographical data (the title, author, date, publisher, etc.) and a short summary or annotation of the source. Your Annotated Bibliography should contain a minimum of three scholarly or peer-reviewed sources, each with an accompanying annotation that is between 150 and 250 words long. The annotations must summarize the research question or thesis, research methodology, results, and conclusion. Annotations must include summaries and paraphrased information, NOT quotations. A good annotation will include two separate paragraphs: 1) a paragraph summarizing the research question or thesis, research methodology, results and conclusion; and 2) a paragraph commenting on why this source is relevant for your research.
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4.Respond to ALL FOUR QUESTIONS. Each question carries 5 marks. Response to each question attempted should be at least 500 ...

ould be at least 500 words. The document should adhere to APA guidelines. Please state the question and then post your answer below the Question. Q1. How does marketing research help in the marketing planning process? Use a hypothetical business (e.g. a small sporting goods store, local hardware manufacturing small business, an independent publishing company, etc.) to discuss how market research helps in compiling market intelligence with regard to aspects such as product decisions, customer segmentation decisions, brand and pricing decisions, keeping stakeholders happy. Q2. NuVision Lens, a mail-order contact lens company has struggled to break even after being five years in the eyewear market. The company’s founders had thought that high demand would exist for mail-order supply as a low-cost alternative to purchasing contact lenses at optical outlets. However, the market share of NuVision continues to be much less than the retail stores. NuVision Lens has hired you as their marketing consultant. Outline the steps that you will take to formulate a problem statement and research objective on the above situation. Q3.  Your friend, Ms.Destiny Brown is the CEO and founder of ‘Hide and Chic’ an upscale leather goods store based in Houston, Texas. Ms. Brown is actively considering to expand her company’s product line to include sports accessories including golf gloves, premium quality leather grips for tennis, squash, racquetball, badminton rackets, leather sports bags, etc. She has hired you to undertake a marketing research study to determine whether a market exists among retail outlets and sporting goods distributors in Houston, for these specialty items under the ‘Hide and Chic’ brand name. Define and describe the target population for this study? Discuss the sampling methods that could be used in this study. Recommend, with reasons, the most optimal sampling procedures for this study. Q4. Farm Fresh Grocery’ (FFG) has always used paper bags for sacking groceries. However, management has noticed that some competitors are offering reusable bags to their customers. FFG management has asked you to find out if its current customers would prefer bringing the reusable bags every time they visit the FFG store. A) Select two projective techniques to use in your research. Give reasons for your choice. B) Describe in detail how your two chosen techniques would be applied to this research problem.
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5.Company: Signet Jewelers Note: Majority of the assignment is completed in the file below, except for the question: List the method ...

r the question: List the method used to inspire each of the 5 Concepts a. 1 must be inspired by an “adjacent” category’s emerging segment, trend, feature, or attributes b. 1 must be inspired from another market leader (market leader: Louis Vuitton) c. 2 must be from the team’s PESTEL-C analysis d. 1 must be from a problem analysis (i.e., reviews, user feedback) and/or other “problem” input (personal experiences)
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6.students are expected to research and compose a paper based on the application of concepts and theories examined in class. ...

ies examined in class. This paper is not a literature review, though a literature review is part of your work. As this course takes place in a compressed timeline, I provided some suggestions for research topics. Feel free to use one of these as a springboard or propose your own. At the end of the second week of class, students submit a three-page research paper prospectus. A research prospectus is a preliminary plan for conducting a study. This is not a detailed and technical research proposal, but rather, an analysis of the issues likely confronted in such a study. In essence, it is a preliminary proposal of work. Research Paper Prospectus Elements To complete the Research Paper Prospectus, consider the following elements. While the prospectus is limited to three pages of body content, remember, students must cover each of these areas as relevant to the plan for research: Research Problem. What is the research problem? A problem is a situation when left untreated, produces a negative consequence for a group, an institution, or a(n) individual(s). What makes it a problem? For whom? Who says so? Assumptions. On what assumptions is the work based? Which assumptions are verifiable in literature? Which assumptions are speculative? Theoretical Issues. What theoretical issues arise from the study? For example, "theoretically," how is the problem and suspected results explained to other scholars? Is there a behavior view? A social systems view? Are there other theoretical orientations to consider in the study's design? Literature Review. What, in general, does the literature say about the topic? While more development is expected for the final paper, a review of major theories, research, and writers in the field is needed. Research Questions. Based on the problem, what are the research questions to be answered? How and why will answering the questions contribute to solving the research problem? Remember....a research question can only be answered with empirical data or information. General Research Plan. In general, what research is necessary to answer the research question. What kind of data is needed? Specify the type, such as surveys, observations, or interviews. Who is to be studied and why? How is the data reduced and made sense of? How is the quality of the data assured? Anticipated Difficulties and Pitfalls. What kind of difficulties and pitfalls are expected in a study of this nature? What can be done to prevent them or minimize their effects? Anticipated Benefits. Who will benefit from the fact this research is undertaken? How? Why? Who might be disturbed by this proposed study? How? Why? Paper Format Requirements The Research Paper Prospectus is presented in standard APA 7 format, with a cover page, running head, body, and references list. The cover page and references do not count toward the three-page requirement. The body uses headers and in-text citations in the manner prescribed by APA. Students should include any references they know at the time they submit the prospectus, though it is expected the references may change or increase in number. Full and complete adherence to APA is required. APA Basics As APA format is the rule, remember the formatting rules shown on the Sample Paper (Links to an external site.): Times New Roman, 12pt 1" margins on all sides Double spaced, with extra line spaces removed (see below) Page numbers in the upper right Two spaces after concluding punctuation 150-250 word abstract with keywords APA-style in-text citations and quote format. Use the Purdue OWL in-text citation information (Links to an external site.)to help you. Alphabetical (by author) reference page with correct reference format. DO NOT trust the reference generator in your word processing program. It is WRONG! Use the Purdue OWL references information (Links to an external site.)to correctly structure references and do so manually.
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7.Task 1 You are asked to carry out a study on behalf of a business analytics specialised consultancy on a subsample ...

on a subsample of weekly data from Randall’s Supermarket, one of the biggest in the UK. Randall’s marketing management team wishes to identify trends and patterns in a sample of weekly data collected for a number of their loyalty cardholders during a 26-week period. The data includes information on the customers’ gender, age, shopping frequency per week and shopping basket price. Randall’s operates two different types of stores (convenient stores and superstores) but they also sell to customers via an online shopping platform. The collected data are from all three different types of stores. Finally, the data provides information on the consistency of the customer’s shopping basket regarding the type of products purchased. These can vary from value products, to brand as well as the supermarket’s own high-quality product series Randall’s Top. As a business analyst you are required to analyse those data, make any necessary modifications in order to determine whether for any single customer it is possible to predict the value of their shopping basket. Randall’s marketing management team is only interested in identifying whether the spending of the potential customer will fall in one of three possible groups including: • Low spender (shopping basket value of £25 or less) • Medium Spender (shopping basket value between £25.01 and £70) and • High spenders (shopping basket greater than £70) For the purpose of your analysis you are provided with the data set Randall’s.xls. You have to decide, which method is appropriate to apply for the problem under consideration and undertake the necessary analysis. Once you have completed this analysis, write a report for the Randall’s marketing management team summarising your findings but also describing all necessary steps undertaken in the analysis. The manager is a competent business analyst himself/herself so the report can include technical terms, although you should not exceed five pages. Screenshots and supporting materials can be included in the appendix. Requirements After completing your analysis, you should submit a report that consists of two parts. Part A being a non-technical summary of your findings and Part B a detailed report of the analysis undertaken with more details. Part A: A short report for the Head of Randall’s Marketing Management (20 per cent). This should briefly explain the aim of the project, a clear summary and justification of the methods considered as well as an overview of the results. Although, the Head of Randall’s Marketing Management team who will receive this summary is a competent business analytics practitioner, the majority of the other team members have little knowledge of statistical modelling and want to know nothing about the technical and statistical underpinning of the techniques used in this analysis. This report should be no more than two sides of A4 including graphs, tables, etc. In this report you should include all the objectives of this analysis, summary of data and results as well as your recommendations (if any). Part B: A technical report on the various stages of the analysis (80 per cent). The analysis should be carried out using the range of analytics tools discussed: • SPSS Statistics Ensure that the exercise references: • Binary and multinomial logistic regression • Linear vs Logistic regression • Logit Model with odds Ratio • Co-efficients and Chi Squared • MLR co-efficients • Assessing usefulness of MLR model • Interpreting a model • Assessing over-all model fit with Psuedo R-Squared measures • Classification accuracy (Hit Ratio) • Wald Statistic • Odd ratio exp(B) • Ratio of the probability of an event happening vs not happening • Ratio of the odds after a unit change in the predictor to the original odds • Assumptions • Residuals analysis • Cook’s distance • DfBeta • Adequacy (with variance inflation factor VIF and tolerance statistic) • Outliers and influential points cannot just be removed. We need to check them (typo? – unusual data?) • Check for multicollinearity • Parsimony Write a short and concise report to explain the technical detail of what you have done for each step of the analysis. The report should also cover the following information: • Any type of analysis that might be useful and check whether the main assumptions behind the analyses do not hold or cannot be • Give evidence of the understanding of the statistical tools that you are using. For example, comment on the model selection procedure and the coefficient interpretation, e.g. comment on the interpretation of the logistic regression coefficients if such a method is used and provide an example of • Conclusions and explanation, in non-technical terms, of the main points
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8.1. For this question, you will review a process, identify problem areas ( such as wastes, cycle time inefficiencies, etc), ...

inefficiencies, etc), and suggest an improved process. Open and read the Process Improvement (Final Q 1) document which describes the process steps in words and also includes a process map as a visual tool for understanding what's going on in each step. You will need to respond to the following three sub-questions: FINAL Q1: 3 Attachments are the Q1 ------------------------------------------------------------------------------------------------------------------------------------------------------------------ I need the 3 part question answered. This is everything in the question.. Understand that there is NOTHING INCOMPLETE, I have added everything that was sent to us. ------------------------------------------------------------------------------------------------------------------------------------------------------------------ a. Of the 9 process steps in the Process Improvement (Final Q 1) document, which specific steps in that process are experiencing lean wastes and/or process cycle time issues (please note, there is more than one step experiencing issues). In your response, name the process step, and/or the transfer interface between steps, and what waste(s) or cycle time issue is involved. Be sure to use standard lean/six sigma terminology that we used in the course when referring to any of the quality concepts; e.g., transportation waste when referring to situations involving a lot of moving around from one place to another. --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- b. Which of the process steps you identified in part a do you believe could benefit from process improvement and why? --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- c. What changes would you institute in the process to improve the steps you cited in part b of this question and describe how those changes improves the process. Be specific about which process step(s) your improving and thoroughly describe the improvement to that step. [Note: This question ties to what you decided was important in part b question above.] Also, when answering how you would improve a given process step, assume you have an unlimited budget and personnel resources and you can do mostly anything you want as long as it doesn't violate the laws of physics or the judicial system. Be cautious though because process improvement is designed to save time, money, and resources in doing the needed work.For example, automation is good, and also potentially expensive, so is it worth it for the improvement? - you will have to be the judge of that.
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1.AU MAT 120 Systems of Linear Equations and Inequalities Discussion

mathematicsalgebra Physics