Uses of Statistics
HCS/438
August 2, 2011
Mike Janson

Uses of Statistics
The use of statistics has been proven to assist the understanding of information, data, in many ways. Statistical information is not just collected, but it is also organized and quantified, providing a clearer picture for further study. This writer will explain how statistics are used in my personal workplace, and describe aspects of the statistics used. Statistics in Personal Workplace

My personal workplace is what the federal government classifies as a skilled nursing facility, under the label of long term care. We serve one hundred and twenty predominantly elderly residents who are both long-term stays, as well as rehabilitative short-term stays. Statistics are used in many aspects of this field, from the reimbursement and payment systems, to the quality improvement measures we must and do depend on for assuring our care is of the highest standards. I will explain two types of statistical classification examples used in my workplace in the following paragraphs. Descriptive Statistic Example

The example of a descriptive statistic would be our Education impacts the quality of the services provided (Gambrill, 2000). At these times, and at times of organizational and personal planning for the future, accurate, and correct nursing decisions need to be made.

Inferential Statistic Example
My long-term professional goal is contingent on my goal defined above. It will not be achieved unless the short-term goal is complete. My long-term professional goal is to be an advanced practice nurse, in particular, a Nurse Practitioner, or NP. A registered nurse in this position, is “prepared for primary care practice in family medicine, women’s health, neonatology, pediatrics, school health, geriatrics, or mental health” (Venes, 2009). I believe I can make a greater difference in the lives of my clients, achieving this goal. Skills needed for this type of position, and...

...Trajico, Maria Liticia D.
BSEd III-A2
REFLECTION
The first thing that puffs in my mind when I heard the word STATISTIC is that it was a very hard subject because it is another branch of mathematics that will make my head or brain bleed of thinking of how I will handle it. I have learned that statistic is a branch of mathematics concerned with the study of information that is expressed in numbers, for example information about the number of times something happens. As I examined on what the statement says, the phrase “number of times something happens” really caught my attention because my subconscious says “here we go again the non-stop solving, analyzing of problems” and I was right. This course of basic statistic has provided me with the analytical skills to crunch numerical data and to make inference from it. At first I thought that I will be alright all along with this subject but it seems that just some part of it maybe it is because I don’t pay much of my attention to it but I have learned many things. I have learned my lesson.
During our every session in this subject before having our midterm examination I really had hard and bad times in coping up with this subject. When we have our very first quiz I thought that I would fail it but it did not happen but after that, my next quizzes I have taken I failed. I was always feeling down when in every quiz I failed because even though I don’t like this...

...REFLECTION ON MEANING, USE AND HISTORY OF STATISTICSStatistics even before came out of the daily needs of the people. From what I thought simple now and complicated in the past, statistics remained a great help to all of them. I imagined how the life would be if I were to live during the time of De Moivre, Adolf Quetelet, Sir Francis Galton and among others. I would be amazed by their works and start to love mathematics. I’d be proficient in the bell-shaped distribution, statistical techniques, percentiles, etc. I am not really into mathematics but I understand that mathematics play an important role in the lives of the people. I don’t have a choice but to love mathematics. Especially that I am a future educator, mathematics especially statistics, will help me a lot in dealing with the paper works in the class. As mentioned in the handout, statistical method has by far the most number of applications. Mathematics, engineering, social sciences make the most use of statistics. Housewives, students, policy-makers, businessmen, teachers and all other people make use of statistics everyday even in some simple activities.
Statistics is the study of the collection, analysis, interpretation, presentation, and organization of data. Every day we collect information on what the weather is and analyze on how we will dress and what we will bring...

...Department of Decision Sciences
Rational Decision Making
Only study guide for
DSC2602
University of South Africa
Pretoria
c 2010 University of South Africa
All rights reserved.
Printed and published by the
University of South Africa,
Muckleneuk, Pretoria.
DSC2602/1/2011
Cover: Eastern Transvaal, Lowveld (1928) J. H. Pierneef
J. H. Pierneef is one of South Africa’s best known artists.
Permission for the use of this work was kindly granted
by the Schweickerdt family.
The tree structure is a recurring theme in various branches
of the decision sciences.
Preface
Everyday life is full of decisions. What should I wear today? What should I eat? Should I buy
the red or blue shirt? Should I buy a speciﬁc house or buy a piece of land? What is the shortest
route from my house to work? . . . And many more.
Some of these decisions can be made without thinking or by guesswork. Some can be solved by
reasoning or emotions. Some are a bit more diﬃcult and may need additional information.
People have been using mathematical tools to aid decision making for decades. During World
War II many techniques were developed to assists the military in decision making. These developments were so successful that after World War II many companies used similar techniques in
managerial decision making and planning.
The decision making task of modern management is more demanding and more important
than ever. Many organisations employ operations...

...of 1000 flights and proportions of three routes in the sample. He divides them into different sub-groups such as satisfaction, refreshments and departure time and then selects proportionally to highlight specific subgroup within the population. The reasons why Mr Kwok used this sampling method are that the cost per observation in the survey may be reduced and it also enables to increase the accuracy at a given cost.
TABLE 1: Data Summaries of Three Routes
Route 1
Route 2
Route 3
Normal(88.532,5.07943)
Normal(97.1033,5.04488)
Normal(107.15,5.15367)
Summary Statistics
Mean
88.532
Std Dev
5.0794269
Std Err Mean
0.2271589
Upper 95% Mean
88.978306
Lower 95% Mean
88.085694
N
500
Sum
44266
Summary Statistics
Mean
97.103333
Std Dev
5.0448811
Std Err Mean
0.2912663
Upper 95% Mean
97.676525
Lower 95% Mean
96.530142
N
300
Sum
29131
Summary Statistics
Mean
107.15
Std Dev
5.1536687
Std Err Mean
0.3644194
Upper 95% Mean
107.86862
Lower 95% Mean
106.43138
N
200
Sum
21430
From the table above, the total number of passengers for route 1 is 44,266, route 2 is 29,131 and route 3 is 21,430 and the total numbers of passengers for 3 routes are 94,827.
Although route 1 has the highest number of passengers and flights but it has the lowest means of passengers among the 3 routes. From...

...compliments the regular mathematics and therefore both are tested in primary schools. Mathematics is the written application of operation. It teaches students to think clearly, reason well and strategize effectively. Mental Mathematics is the ability to utilise mathematical skills to solve problems mentally. The marks scored by pupils generate statistics which are used by teachers to analyse a student’s performance and development of theories to explain the differences in performance.
The Standard 3 class is where the transition from junior to senior level occurs where teachers expect the transference of concrete to abstract thinking would have occurred.
A common theory by many primary school teachers is ‘Students perform better in Mathematics than Mental math. Mental math is something that has to be developed and involves critical thinking. Mental math requires quick thinking and the student must solve the problem in their minds whereas in regular mathematics, the problem can be solved visually. Therefore, teachers should take these factors into consideration while testing and marking students in these areas.’
In this study, the statistics of 30 students of a standard 3 class of San Fernando Boys’ Government School will be analysed to determine the truth of this theory.
DATA COLLECTION METHODS
Mathematics and mental mathematics marks of term 1 of the class of 2013 were obtained from a Standard 3 teacher of San Fernando Boys’...

...idea of Satyagraha
Mahatma Gandhi returned to India in January 1915. As you know he had come from South Africa when he had successfully fought the racist regime with a novel method of mass agitation, which he called Satyagraha. The idea of Satyagraha emphasized the power of truth and the need to search for truth. It suggested that if the cause was true, if the struggle was against injustice, then physical force was not necessary to fight the oppressor. Without seeking vengeance or being aggressive a Satyagrahi could win the battle through non-violence. Appealing to the conscience of the oppressor could do this. People – including the oppressors – had to be persuaded to see the truth instead of being forced to accept the truth through the use of violence. By this struggle, truth was bound to ultimately triumph. Mahatma Gandhi believed that this dharma of non-violence could unite the Indians.
After arriving in India, Mahatma Gandhi successfully organized Satyagraha movements in various places. In 1916, he went to Chamaparan in Bihar to inspire peasants to struggle against oppressive plantation system. Then in 1917, a struggle was organized to support peasants of Kheda district in Gujarat, affected by crop failure and a plague epidemic. In 1918, he went to Ahmadabad to organize a movement amongst the cotton mill workers.
The Rowlatt Act
Emboldened by these successes, in 1919 Gandhi decided to launch a nation wide satyagraha against the proposed...

...Statistics is defined by Bennett, Briggs, & Triola (2009), as “the science of collecting, organizing, and interpreting data” (p. 1). Almost every profession usesstatistics in some way to guide in making good decisions based on current research. The nursing profession relies heavily on current research to guide patient care with the integration of evidenced-based practice. Statistics provide valuable information to caregivers to help them understand, plan, evaluate, and improve the quality of patient care. In the acute care hospital setting there are ongoing measurements of such things as patient satisfaction, hand washing compliance rates, catheter acquired urinary tract infections, and central access infection rates, just to name a few. The collection of this data involves descriptive statistics, inferential statistics, and levels of measurements.
Acute care hospitals use descriptive statistics in many ways. Descriptive statistics describes raw data in the form of samples or graphs (Bennett, Briggs, & Triola, 2009). One area in which they are used in the hospital is to evaluate hand washing compliance of health care providers. According to Vincent (2003), nosocomial infections occur in approximately 30% of patients in the intensive care setting and are associated with increased morbidity and mortality. Research shows that effective hand washing...

...
MBA 501A – [STATISTICS]
ASSIGNMENT 4
INSTRUCTIONS: You are to work independently on this assignment. The total number of points possible is 50. Please note that point allocation varies per question. Use the Help feature in MINITAB 16 to read descriptions for the data sets so that you can make meaningful comments.
[10 pts] 1. Use the data set OPENHOUSE.MTW in the Student14 folder. Perform the Chi
Square test for independence to determine whether style of home and location are are related. Use α = 0.05. Explain your results.
Pearson Chi-Square = 37.159, DF = 3, P-Value = 0.000
Likelihood Ratio Chi-Square = 40.039, DF = 3, P-Value = 0.000
The P value associated with out chi square is 0.00 and the Alpha level is 0.05 so we reject the null hypothesis. The P- value is less than the alpha level. So, we conclude that style of homes and locations are not related.
[10 pts] 2. Use the data set TEMCO.MTW in the Student14 folder. Perform the Chi
Square test for independence to determine whether department and gender are related. Use α = 0.05. Explain your results.
Pearson Chi-Square = 1.005, DF = 3, P-Value = 0.800
Likelihood Ratio Chi-Square = 1.012, DF = 3, P-Value = 0.798
The P-value associated with out chi square is 0.800 and the Alpha level is 0.05 we can see that we are unable to reject the null hypothesis. The P- value is greater than the alpha level. So, we conclude that...