401077 Introduction to Biostatistics Assignment

Introduction to Biostatistics Assignment

Please answer all 7 questions. Record your answers in the template document provided and submit via Turnitin before 11:59pm on the due date. The marks allocated to each question are shown in the assignment.  A total of 30 marks are available and this assignment is worth 30% of your overall grade.

Some of the questions require you to analyse the unique assignment data set which I have created for you. This is labelled ‘dataforxxxxxxxx.RData’ where xxxxxxxx represents your Student ID number. You can find this with your Assessment materials in vUWS. Please also locate and read ‘Description of your data set.docx’.

Note: Each student will get different answers as the data sets differ.

Question 1 (5 marks)

A random sample of 10 former University of Eastern Sydney students was ask whether they drink more or less since they graduated from University. Their answers were:

more, less, less, less, more, less, less, less, less, more

Conduct a sign test to see whether or not this provides evidence of a change in drinking habits of the wider population of graduates from University of Eastern Sydney. Use the 5-step method and show all working. Use the Table 6 from the textbook (below) to determine the decision rule or use R Commander to calculate the p-value.

Question 2 (3 marks)

Research question: What is the mean well-being (WEMWBS) score for University of Eastern Sydney Students?

Using the University of Eastern Sydney data set assigned to you and R Commander:

  • Calculate the 95% confidence interval for the mean well-being (WEMWBS) score in this population. (1 mark)
  • Write a sentence which answers the research question above as fully as possible. (2 marks).

This research question applies to questions 3 and 4

Research question: Among University of Eastern Sydney students, do self-reporting drug users (variable: drug) have lower well-being scores (variable: WEMWBS) than non-users?

Question 3 (7 marks)

  • Would you address this research question with a one-tailed hypothesis test or a two-tailed hypothesis test? Explain why. (1 mark)
  • Write the null and alternate hypotheses for a parametric hypothesis test, fully defining any symbols which you use. (2 marks)
  • Using the University of Eastern Sydney data set assigned to you and R Commander find and report (2 marks)
    • the mean wellbeing (WEMWBS) score for drug users in the sample
    • the mean wellbeing (WEMWBS) score for non-users in the sample
    • the p-value for the difference in mean wellbeing (WEMWBS) between these two groups in the population
  • Based on the results of c) provide your answer to the research question. (2 marks)

Question 4 (5 marks)

Conduct an equivalent nonparametric hypothesis test for this research question. Please use R Commander for all calculations, but follow the 5 step method in your presentation. (5 marks)

Question 5 (3 marks)

Suppose that the WEMWBS wellbeing score had been designed to be Normally distributed with a mean  and standard deviation .  Suppose we wished to undertake a study to test whether the mean wellbeing (WEMWBS) score of Western Sydney University students was at least half a standard deviation (2 points) better than average. Suppose we wished the test to return 90% power of detecting a higher mean score of this size at the  significance level. Use an appropriate online calculator to calculate the minimum required sample size for this study. Present your answer as a sentence which details the required sample size to achieve what power subject to what conditions.

Question 6 (5 marks)

Research question: Does the proportion of students self-reporting as illicit drugs users differ by gender in the University of Eastern Sydney population?

Using the University of Eastern Sydney data set assigned to you and R Commander:

  • Show the relationship between illicit drug use and gender using a two-way contingency table. Include either row or column percentages. Type and label the table yourself; an R Commander screenshot will not be accepted. (1 mark)
  • Are the requirements for a Chi-square test met? Explain why. (1 mark)
  • Irrespective of your answer in part b. address the research question using a Chi-square test. Ensure you specify the hypotheses you are testing and explain the evidence for or against the hypothesis. (3 marks)

Question 7 (2 marks)

Estimate the minimum sample size required to produce a 95% confidence interval with a margin of error of for the proportion of illicit drug users among Western Sydney University students. Present your answer as a sentence which summarises the required sample size to achieve what confidence level subject to what conditions.

Order Now

Get expert help for Introduction to Biostatistics Assignment and many more. 24X7 help, plag free solution. Order online now!

Universal Assignment (May 11, 2026) 401077 Introduction to Biostatistics Assignment. Retrieved from https://universalassignment.com/401077-introduction-to-biostatistics-assignment/.
"401077 Introduction to Biostatistics Assignment." Universal Assignment - May 11, 2026, https://universalassignment.com/401077-introduction-to-biostatistics-assignment/
Universal Assignment April 29, 2023 401077 Introduction to Biostatistics Assignment., viewed May 11, 2026,<https://universalassignment.com/401077-introduction-to-biostatistics-assignment/>
Universal Assignment - 401077 Introduction to Biostatistics Assignment. [Internet]. [Accessed May 11, 2026]. Available from: https://universalassignment.com/401077-introduction-to-biostatistics-assignment/
"401077 Introduction to Biostatistics Assignment." Universal Assignment - Accessed May 11, 2026. https://universalassignment.com/401077-introduction-to-biostatistics-assignment/
"401077 Introduction to Biostatistics Assignment." Universal Assignment [Online]. Available: https://universalassignment.com/401077-introduction-to-biostatistics-assignment/. [Accessed: May 11, 2026]

Please note along with our service, we will provide you with the following deliverables:

Please do not hesitate to put forward any queries regarding the service provision.

We look forward to having you on board with us.

Categories

Get 90%* Discount on Assignment Help

Most Frequent Questions & Answers

Universal Assignment Services is the best place to get help in your all kind of assignment help. We have 172+ experts available, who can help you to get HD+ grades. We also provide Free Plag report, Free Revisions,Best Price in the industry guaranteed.

We provide all kinds of assignmednt help, Report writing, Essay Writing, Dissertations, Thesis writing, Research Proposal, Research Report, Home work help, Question Answers help, Case studies, mathematical and Statistical tasks, Website development, Android application, Resume/CV writing, SOP(Statement of Purpose) Writing, Blog/Article, Poster making and so on.

We are available round the clock, 24X7, 365 days. You can appach us to our Whatsapp number +1 (613)778 8542 or email to info@universalassignment.com . We provide Free revision policy, if you need and revisions to be done on the task, we will do the same for you as soon as possible.

We provide services mainly to all major institutes and Universities in Australia, Canada, China, Malaysia, India, South Africa, New Zealand, Singapore, the United Arab Emirates, the United Kingdom, and the United States.

We provide lucrative discounts from 28% to 70% as per the wordcount, Technicality, Deadline and the number of your previous assignments done with us.

After your assignment request our team will check and update you the best suitable service for you alongwith the charges for the task. After confirmation and payment team will start the work and provide the task as per the deadline.

Yes, we will provide Plagirism free task and a free turnitin report along with the task without any extra cost.

No, if the main requirement is same, you don’t have to pay any additional amount. But it there is a additional requirement, then you have to pay the balance amount in order to get the revised solution.

The Fees are as minimum as $10 per page(1 page=250 words) and in case of a big task, we provide huge discounts.

We accept all the major Credit and Debit Cards for the payment. We do accept Paypal also.

Popular Assignments

Assessment 1

Helpful Tools for ReflectionDuring the reflective journal process, you may wish to use these helpful templates and decision wheel tools to consolidate thoughts and ideas.Regardless of which framework is chosen, all areas of reflection are to be attempted to complete the full reflective cycle. It is important that any template,

Read More »

Professional Nursing Assignment Help for Students: Achieve Academic Excellence with Expert Support

Introduction Nursing is a demanding field that combines theoretical knowledge with practical skills. Students pursuing nursing courses often face challenges in completing assignments that require accuracy, critical thinking, and real-world application. This is where nursing assignment help becomes an essential academic support system. With increasing academic pressure and clinical responsibilities,

Read More »

Economics Assignment Help: A Complete Guide for Students

Introduction Economics is a fundamental subject that helps students understand how markets, governments, and individuals make decisions regarding resources. While it is highly relevant in today’s world, many students find economics assignments challenging due to complex theories, graphs, and data analysis. This is where economics assignment help becomes extremely useful.

Read More »

Law Assignment Help: A Complete Guide for Students

Introduction Law is a complex and intellectually demanding field that requires critical thinking, analytical skills, and a deep understanding of legal principles. Students pursuing law often face challenges in completing assignments due to extensive research requirements and intricate case analysis. This is where law assignment help becomes highly beneficial. With

Read More »

Nursing Assignment Help: A Complete Guide for Students

Introduction Nursing is a highly respected and demanding field that requires a strong understanding of medical concepts, patient care, and clinical practices. Students pursuing nursing often face intense academic pressure due to complex assignments, practical responsibilities, and tight deadlines. This is where nursing assignment help becomes essential. With expert assistance,

Read More »

Finance Assignment Help: A Complete Guide for Students

Introduction Finance is a core subject in business and management studies, covering areas like investment analysis, financial management, and risk assessment. While it offers excellent career opportunities, many students find finance assignments challenging due to complex calculations and analytical concepts. This is where finance assignment help becomes essential. With expert

Read More »

Computer Science Assignment Help: A Complete Guide for Students

Introduction Computer Science is one of the most popular and dynamic fields of study, offering vast career opportunities in software development, data analysis, cybersecurity, and more. However, students often face difficulties in completing assignments due to the technical complexity and time constraints. This is where computer science assignment help becomes

Read More »

Digital Marketing Assignment Help: A Complete Guide for Students

Introduction Digital marketing has become a vital part of modern business strategies, making it a popular subject among students worldwide. From social media campaigns to search engine optimization, the field is dynamic and constantly evolving. However, completing assignments in this subject can be challenging due to its practical and analytical

Read More »

Cloud Computing Assignment Help: A Complete Guide for Students

Introduction Cloud computing has become a fundamental part of modern technology, powering everything from mobile apps to enterprise systems. As universities increasingly include this subject in their curriculum, students often find it challenging to keep up with assignments and projects. This is where cloud computing assignment help becomes essential. With

Read More »

Blockchain Assignment Help: A Complete Guide for Students

Introduction Blockchain technology has rapidly gained popularity across industries such as finance, healthcare, and supply chain management. As a result, it has become an important subject in academic programs worldwide. However, students often struggle with its technical concepts and practical applications. This is where blockchain assignment help becomes highly valuable.

Read More »

Data Science Assignment Help: A Complete Guide for Students

Introduction Data Science has become one of the most in-demand fields in today’s digital era, combining statistics, programming, and analytical thinking. However, many students find it difficult to keep up with the complexity of assignments and projects in this subject. This is where data science assignment help plays a crucial

Read More »

Artificial Intelligence Assignment Help: A Complete Guide for Students

Introduction Artificial Intelligence (AI) is transforming industries across the globe, making it one of the most sought-after academic subjects today. However, mastering AI concepts and completing assignments can be challenging for many students. This is where artificial intelligence assignment help becomes essential. With expert guidance, students can better understand complex

Read More »

Assignment Writing Services: A Complete Guide for Students

Introduction Assignments are a crucial part of academic life, helping students develop knowledge, research skills, and critical thinking. However, managing multiple assignments along with exams and personal responsibilities can be overwhelming. This is where assignment writing services become highly beneficial. These services provide expert assistance, helping students complete their assignments

Read More »

Blockchain Assignment Help: A Complete Guide for Students

Introduction Blockchain technology has emerged as one of the most revolutionary innovations in recent years. From cryptocurrencies to secure data management, blockchain is transforming industries like finance, healthcare, and supply chain. Students studying blockchain often face challenges due to its technical concepts and real-world applications. This is where blockchain assignment

Read More »

Assignment Writing Services: A Complete Guide for Students

Introduction Assignments are a crucial part of academic life, helping students develop knowledge, research skills, and critical thinking. However, managing multiple assignments along with exams and personal responsibilities can be overwhelming. This is where assignment writing services become highly beneficial. These services provide expert assistance, helping students complete their assignments

Read More »

Academic Writing Services: A Complete Guide for Students

Introduction Academic writing is a fundamental part of education, requiring students to produce essays, research papers, case studies, and dissertations. It demands strong writing skills, proper structure, and in-depth research. However, many students struggle with academic writing due to time constraints and lack of expertise. This is where academic writing

Read More »

Online Homework Help Services: A Complete Guide for Students

Introduction Homework is an essential part of a student’s learning process, helping reinforce classroom knowledge and improve understanding. However, with increasing academic pressure and multiple responsibilities, students often struggle to complete their homework on time. This is where online homework help services become highly beneficial. They provide expert guidance, save

Read More »

Thesis Writing Help: A Complete Guide for Students

Introduction A thesis is one of the most important academic documents a student will write during their educational journey. It requires in-depth research, critical analysis, and a clear presentation of ideas. However, many students find thesis writing overwhelming due to its complexity and time-consuming nature. This is where thesis writing

Read More »

Essay Writing Help: A Complete Guide for Students

Introduction Essay writing is a fundamental part of academic life, helping students express their ideas, analyze topics, and develop critical thinking skills. Whether it’s argumentative, descriptive, or analytical, writing a high-quality essay requires proper structure, research, and clarity. However, many students struggle with essay writing due to time constraints and

Read More »

Content Writing Assignment Help: A Complete Guide for Students

Introduction Content writing has become a crucial skill in the digital era, playing a key role in blogging, marketing, and online communication. From academic essays to website content, strong writing skills are essential for students across all fields. However, many students struggle with structuring content, maintaining clarity, and optimizing for

Read More »

Digital Marketing Assignment Help: A Complete Guide for Students

Introduction Digital marketing has become one of the most important skills in today’s online-driven world. From social media marketing to search engine optimization (SEO), businesses rely heavily on digital strategies to reach their audience. Students studying digital marketing often face challenges in understanding strategies, tools, and real-world applications. This is

Read More »

Can't Find Your Assignment?