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Statistics
Assignment OutlineThis individual assignment constitutes 40% of the overall assessment for the module, BM3034 Business Statistics. The assignment covers topics on continuous probability distribution, sampling distribution of the sample means, statistical estimation and hypothesis testing. You will solve problems in the above topics and submit a report on how you apply the statistical concepts to facilitate your decision-making process when c...
Question 1.1Problem 1. set-up: you are interested in studying the writing style of a popular Time Magazine contributor, FZ. you collect a simple random sample of his articles and count how many times he uses the word however in each of the articles in your sample, (x1, ..., xn). In this set-up, xi is the number of times the word however appeared in the i-th article. Question 1.1. (10 points) define the population of interest, the population...
Brazil is one of the countries most affected by the COVID-19 pandemic, with more than 16 million confirmed cases and 454 429 confirmed deaths by May 26, 2021 (according to the Johns Hopkins Coronavirus Resource Center). Brazil was and still is one of the countries most impacted by the first wave of Covid-19 which first recorded case on 26th February 2020 and reached community transmission from 20th March 2019 onwards to dates, that...
Problem 1 1. Diego and Gregory began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Diego took a test in Math and earned a 77, and Gregory took a test in Science and earned a 69.6. Use the fact that all the students' test grades in the Math class had a mean of 72.4 and a standard deviation of 9.3, and all the students' test grades in Science had a mean of 62.9 and a stan...
Question 1: Examples of hypothesis testing with 1 proportion Z test, 2 proportion Z test, 1 sample t test, and 2 independent samples t test. 1. For each of the following questions, write the hypotheses that would be tested and then determine which hypothesis test should be used. Select from the following four choices. • 1 proportion Z test • 2 proportion Z test • 1 sample t test • 2 independent samples t test When wr...
Questions:HEATLHCARE: MANAGING BEYOND EXCEPTIONSYou are the Assistant Director of Surgical Operations for a local hospital. Over the last several years in your work, you have learned that managing exceptions in healthcare can be a real challenge. Outliers in data, rare medical errors, or special circumstances can lead to inefficient processes, higher costs, or worse, distract health practitioners from overall patient safety and achie...
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ScenarioAssignment: Analysis of Variance (ANOVA)In Week 4, you explored t-tests, which allowed you to compare a sample to a population or compare two groups to one another. For example, you might want to compare the effectiveness of two types of treatment for insomnia, but what if you want to compare the effectiveness of more than two groups? A one-way analysis of variance, or ANOVA, allows you to do just that—compare multiple groups (ca...
Question: Project Description: You are the assistant director of the Accounting and Finance departments at Healthy Living Motorcycles, Inc. In addition to ensuring that all daily business transactions are completed accurately, you also play a key role in assembling the annual financial reports. Currently, you are responsible for putting together the financial statements to be presented to the upcoming annual stockholders meeting. Budgeted Se...
1. Technical Requirements: to complete this assignment you need an access to a computer with Excel software as well as a stable internet connection for the duration of the test, ie. 60min.  2. There are two other tabs in this spreadsheet: "Raw data" is related to the humanitarian workforce data generated from the last report coming form the human resources department  [These are all fake data].  "Projec...
Proof of data collection techniqueProof of data collection technique used (The output of statistical analytical software utilised for the analysis (i.e. SPSS or NVivo output) must be submitted separately on NILE.All submissions should be through Turnitin on NILE. Students could submit their drafts of article and porfolio to check the similarity up to submission date. However, they can not resubmit after the due date. For that, plea...
Maternity Ward Capacity ManagementThe maternity ward of a large London-based hospital trust has signed a contract with the National Health Service to deliver 14000 babies in 2021. To achieve this, it needs to have approximately 270 deliveries per week (=14000 deliveries/52 weeks). Deliveries are booked when the expecting mother is towards the end of the first trimester of gestation (i.e., about 6 months before they actually take place). Howe...
TaskFor this assignment you will find an attached case (below) which you are required to analyze and present your analysis in a formal report. This is a group project which will be due on the second to last day of the intensive at 5 PM. (January 11, 2022). The group will consist of 2-3 students and you will find a group sign up sheet located on the assignment page and the front page of your course site. It will be the choice of the students w...
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Via MS Excel develop a logic-based programming application. Please use the data in Excel spreadsheet you used in Module 9. Each line in the attached file represents one patient treated at the hospital. You may assume that there is only one type of hospital (i.e., Methodist, Catholic, etc.) within each county within each state. Assume that a drop in blood pressure is “good”. As one can easily see, some hospitals have a greater ave...
ObjectivesObjectives This assignment aims to assess students’ theoretical understanding and practical knowledge of concepts covered in independent learning and practical sessions. Background The dataset provided in this assignment is created by researchers at the Peterson Institute for International Economics (PIIE) which uses data from the 1996 to 2014 Forbes’ World’s Billionaires lists. The data includes the name, ...
Part A1: Hypothesis examples for attitudes towards gun control and tolerance in adolescentsFor each of the following research questions, create one null hypothesis, one non-directional research hypothesis, and one directional hypothesis. What are the effects of working remotely on productivity? What is the relationship between social isolation and depression? What is the best way to treat an eating disorder? How do early intervention pro...
Learning OutcomesAs part of the formal assessment for the programme you are required to submit a Using Numeracy, Data and IT assignment. Please refer to your Student Handbook for full details of the programme assessment scheme and general information on preparing and submitting assignments. Â Learning Outcomes: After completing the module, you should be able to:1. Use basic numerical operations with whole numbers, integers, fracti...
Questions: This assignment is worth 16% of the final mark for MTH220 Statistical Methods and Inference The cut-off date for this assignment is 20 October 2021 (Wednesday), 23 55 hours.You are to include the following particulars in your submission. In a semiconductor production line, a manufacture batch contains 1000 pieces of wafers. A wafer contains 81 arrays.(a) The number of defective arrays per wafer follows a Poisson distribution with the...
Introduction and ImportanceSalary equity at Safecorp You have been asked to provide statistical expertise in a lawsuit alleging discrimination against minority employees at Safecorp, a major banking institution. One of the issues at stake is salary equity. Your clients, the plaintiffs’ lawyers, have supplied a random sample of records from 474 employees . Nominal Your task is to address the following questions in a brief memo to th...
After completing the data analyses and refining the literature review based on your understanding of the information that you use to develop the proposed models, in this stage of the project, you need to document the data analysis procedures and evaluate the developed machine learning models from three areas: Effectiveness, by selecting and applying a set of valid measures to test the performance of the models Efficiency, by measuring the ...
Part 1: Recent namesThis assignment assumes you have the understanding of R using the tidyverse. Load the babynames tibble. Use dplyr to create a dataframe of all names that were not used prior to 2010. Use ggplot2 to produce a graph summarising how usage of this set of names changed over the period 2010-2017. This could be a boxplot graph summarising the distribution of the number of uses in each year. Which of those names were used most a...
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Summary of a topicWrite a very brief summary relating to any topic in dental research or oral-health research, stating the title of topic of your review clearly at the beginning of this very short essay.Find around 5 to 10 publications that are relevant to your topic and cite your references appropriately in the text by using either the Harvard or Vancouver citation style (choose one or the other). If you wish to use a software package ...
Task Excel Spreadsheet:No Excel spreadsheet should be submitted. Your report should contain all necessary information for a complete understanding of your analysis. See within.Assessment: You must provide evidence of understanding. This implies that you are required to discuss the relevant theory behind any of your calculations and implementation.To achieve full marks, you will need to devise the appropriate amount of discussion behind the ...
Summary of the ProjectSummary of Project: For this project, which in total is worth 15% of your final course mark, you will be using some of the basic data analysis techniques learned in this course to summarize and analyze a statistical question. Â You will be asking a statistical question that can be answered with the statistics we learn throughout this course, then collecting data from reliable sources for analysis. This data ...
Subset Data to Keep only 2015 YearsFor this section we will analyze data from 2015. First, we will merge additional economic data to the data we used in problem set 1, only keeping 2015 data. Then we will explore the relationship between school finances and the local economy. Q1a. Load districtdata.csv in your workstation and name the data frame districts. Subset the data to keep only 2015 years using the subset function, for example: Dist...
Questions (68 marks)Instructions• The midterm assessment will be posted on Moodle on 5th November 2021 at 6pm, and is due on 10th November 2021 at 2pm. Please follow all designated SPP submission guidelines for online submission as detailed on the POLS0083 Moodle page. Standard late submission penalties apply.  • This is an assessed piece of coursework (worth 30% of your final module mark) for...
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