Questions
A study was conducted to find out the type of relationship between randomly selected15 Masters of...

A study was conducted to find out the type of relationship between randomly selected15 Masters of Education Degree students scores in Research Methods and Statistics at Mount Kenya University during the 2012/2013 academic year. The results were as displayed in the table below.
Student    Research marks   Statistics marks
1   84   69
2   74   64
3   48   56
4   54   72
5   72   85
6   71   68
7   96   87
8   75   86
9   69   71
10   100   91
11   23   31
12   58   65
13   94   89
14   76   71
15   52   54

i)   State the null and alternative hypotheses.                    (2mks)
ii)   Calculate Pearson correlation coefficient between the two sets of data.         (4mks)
iii)   What is your overall conclusion regarding the nature of relationship between the two variables if r( df = 14) at ∝ =.01 significance level?           (2mks)  
iv)   Fit a line of best fit (linear regression) of Y on X                    (4mks)
v)   Estimate the Y score of a student who obtained 6 in X                 (1mk)  

In: Statistics and Probability

Allisson Russo is a 15 year old girl admitted to the Emergency Room with Right ,...

Allisson Russo is a 15 year old girl admitted to the Emergency Room with Right , lower quadrant pain. She is eventually diagnosed with appendicitis and scheduled for an appendectomy. After visiting Allison in the Er, the surgeon Alerts the Operating Room nurse, Ms. Wendy Harnes that the surgery will take place in an hour. Allison is HIV positive from emergency medical acre and blood transfusions that she received six years ago, following an auto accident. Allison does not know that she is positive, at the request of her parents, who are born high-powered attorneys. Allison tells Ms. Harnes that she used to to be involved in sports but has dropped these activities in school because of feeling more tired than usual. She thinks that her academic studies are simply requiring more of her attention , but her mother has suggested that perhaps she would be seeing a new doctor soon. Allison asks the nurse “ Do you think being tired at my age is a serious concern? I thought all teenagers feel like this. I feel that I have a serious health problem.” How should Ms. Hayes respond to Allison?

In: Nursing

1. What are the elements of team leadership? 2. Ethics is the study of morally right...

1. What are the elements of team leadership?

2. Ethics is the study of morally right behaviors and character.
i. The manufacturing cost of the widgets your company makes has dropped by 50%. One of your customers, Sam, tells you he knows this because he is best friends with your company’s Vice President of production and asks you for a discount on his order. Your boss accepts this request. Your other customer, Sue (who is one of your best friends and knows nothing about the drop in manufacturing costs), places the exact same order for widgets as Sam. Do you offer her a similar discount? Do you tell her about the drop in manufacturing costs?

ii. You are a working student, a manager of a company. Your company has engaged you for a whole month, so you have not had enough time to focus on completing and submitting your assignment. You have 48 hours to submit a 3,000 words assignment. Your classmate has offered to do your assignment for you, but your religious values does not permit you to allow this academic misconduct. What will you do?

In: Psychology

Data modeling is a key component to creating a database. There are all different aspects of...

Data modeling is a key component to creating a database. There are all different aspects of data modeling, with concerns from various things to the methodology of modeling, to software, to interfaces used between each model.

Paper: Write a 3 page paper (at model 1.2 spacing, 12 pt font, 1 inch margins with at most one half of the paper including a figure, citations not included) on some aspect of data modeling in industry. You must use reliable academic and industry resources. You must have at least one resource that connects your topic to industry. Write up should not exceed 4 pages, excluding citations. Example topics include:

  • Data modeling challenges in transportation industry (logistics)
  • Data modelling notations or techniques other than the ER or relational model (Bachman diagrams, Barker's notation, Chen's notation, Data Vault Modeling, Extended Backus–Naur form, IDEF1X, Object-relational mapping, Object-Role Modeling, Relational Model, Relational Model/Tasmania)
  • Data modelling case study for a specific company.
  • Suggestions for other topics from students will also be taken.

In: Computer Science

1. Explain the background economic climate that led to this action or the news discussion of...

1. Explain the background economic climate that led to this action or the news discussion of possible action. Clearly explain the objective(s) the government is trying to achieve and explain the specific economic instrument or instruments the government is using (or which are being discussed) to achieve the stated objective.
2. Evaluate the action or planned action in terms of economic theory you have learned, highlighting the expected efficacy of the policy and any effects it might have on other macroeconomic objectives and the effects it might have on consumers and/or businesses.
3.Clearly explaining the policy objective(s) and explaining links between government actions identified and achieving stated objectives. Critical evaluation of Government policy in terms of economic theory – highlighting impacts, showing winners and losers.

PS.Evidence of ability to source appropriate reference materials and correct acknowledgement of sources.

PS.In your responses, you might make use of quality newspaper and magazine articles to present facts and ideas.

PS.You should also make use of references to academic journal articles, supplied readings and text books to justify your conclusions. Back up your conclusions with economic reasoning rather than emotion or political opinion.

In: Economics

We consider a randomized experiment, the Tennessee STAR experiment, where students and teachers are randomly assigned...

We consider a randomized experiment, the Tennessee STAR experiment, where students and teachers are randomly assigned to either a small class (15 students) and a regular class (24 students).

We want to estimate the effect of smaller class in primary school and use the following linear model:
Score = β0 + β1ClassSize + Controls + u,
where Score is student’s academic score, Class Size is dummy for small class, and controls includes free lunch status, race, gender, teacher characteristics and so on.

However, you estimate the following model instead:
Score = α0 + α1ClassSize + v


A. Provide the conditions for the OLS estimator for α1 to be unbiased.
B. Provide the Gauss-Markov assumptions for the OLS estimator for α1.
C. Evaluate the sign and the magnitude of bias α1 if teacher’s experience has positive effect on score and more experienced teachers are more likely to be assigned to regular class.
D. Suppose that teachers and students are randomly assigned to either a small class (15 students) or a regular class. Compare α1 to β1.
E. How does the OLS estimator for β1 change as we additionally include parental characteristics as Controls?

In: Math

When it comes to Bodies & Sexualities, the common denominator globally: Keep people unhappy with how...

When it comes to Bodies & Sexualities, the common denominator globally: Keep people unhappy with how they look = get their money = maintain social control Discuss Aleichia William’s statement, “I’m learning to embrace every aspect of my identity and not let small minds put me in a box that just doesn’t fit.” Post#1: Discussion Post ( 3 Points) In what institutionalized ways does our society force people into these boxes? (300 words): (1 point) Have you ever experienced having to identify within a box that didn’t fit? How did you handle it? What can we do to shift our thinking to a less rigid and separate way of thinking about identity? Think about what communities you are a part of. (300 words): (1 point) Are they supportive or oppressive? In what ways? How did you find them? C. How are your interactions with other members of the community different from interactions with people outside the community? (300 words): (1 point) (Support each answer with course material and/or other academic sources and provide citations)

In: Psychology

Apply Jean Piaget’s preoperational stage theory (symbolic thought, pretend play, and egocentrism) to early childhood development....

Apply Jean Piaget’s preoperational stage theory (symbolic thought, pretend play, and egocentrism) to early childhood development. Give an example for each.

Explain why children during early childhood are unable to understand law of conservation.

Apply Vygotsky’s concepts of scaffolding and zone of proximal development to early childhood cognitive development.  Apply by using an example.

Explain how the impact poverty has on academic experiences and IQ.

Describe the effects of television on learning. How much television will you allow your children to watch?

Provide examples of the appearance-reality distinction.

What are scripts?  Explain.

Explain autobiographical memory (episodic memory).

Summarize the factors that influence memory.

Identify different memory strategies used by preschoolers.

Describe the process of how words are learned by preschoolers.

Explain whole-object assumption.

Explain contrast assumption.

Describe the process of how preschoolers learn grammar.

What is overregularization?

Why questions containing “what,” “who,” and “where” appear earlier than questions of “why,” “when,” “which,” and “how”?

Explain the role of pragmatics in language development.

Describe the importance of Vygotsky’s concept of inner speech.

In: Psychology

The internal as well as external environment of organisations, including public sector organisations, have become very...

The internal as well as external environment of organisations, including public sector organisations, have become very dynamic. Over the last decades many unpredictable events happened which had dramatic impacts on many countries. The public sector needs a new breed of leaders who can address the new challenges in this ever changing world. Lately, the Covid-19, the corona virus disease, is having a devastating effect in many countries, including Mauritius. At the beginning of March 2020, the Prime Minister announced a series of measures to reduce the socio-economic impact of Covid-19 for Mauritius (GIS, 2020). He announced that overall Government spending will be reduced by 10%. In this volatile and unpredictable environment, public administrators have a critical role to play to save a country in the medium to long term. Strong and effective leadership have become imperative in the public sector in Mauritius.

Carry out the following tasks:

Research academic and Journal articles on Leadership in the public sector. Prepare a brief literature review of the topic. This should include some relevant theories on Leadership. Your research should mainly be based on recent articles from peerreviewed journals. [12 Marks]

In: Operations Management

Evaluating Source One of the responsibilities often associated with management is the gathering of career-specific information...

Evaluating Source

One of the responsibilities often associated with management is the gathering of career-specific information on resources or professional development. Familiarity with professional sources shows you have interest in your field and invest time to stay current with developments and debates in your industry. Sources for the IT field.

For this assignment, you will identify credible sources related to your field. You will identify the sources using accurate APA format. Then, for each source, you will write two complete paragraphs that

  1. Summarize the source;
  2. Comment on the source’s benefits and currency.

For your sources, you should include at least one of each of the three following sources:

  1. An academic or professional source from the Keiser e-library database. Avoid single articles, too. Try to identify a database or a journal relevant to your field.
  2. A professional news in your field or a respected commercial site like The New York Times, The Wall Street Journal. An online magazine such as Forbes or Fortune might be appropriate, depending on your field.
  3. An organizational site such as .org, .edu, and .gov site. Examples could include American Medical Association, the National Criminal Justice Association, the American Dairymen's Association, and so forth.

In: Computer Science