Statistics is a mathematical science pertaining to the collection‚ analysis‚ interpretation or explanation‚ and presentation of data. It is applicable to a wide variety of academic disciplines‚ from the physical and social sciences to the humanities. Statistics are also used for making informed decisions and misused for other reasons in all areas of business and government. Statistical methods can be used to summarize or describe a collection of data; this is called descriptive statistics. In
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UNIVERSITI TEKNOLOGI MALAYSIA ENGINEERING STATISTICS – SSE/SSCE 2193 2012/2013 SEMESTER I TEST 1 - 15% 1 hour ANSWER ALL QUESTIONS 1. a) An experiment is conducted to select a suitable catalyst for the production of a dispersant for cleaning oil spill in Straits of Malacca. Suppose Ir. Aziz‚ the chemical engineer randomly selected three catalysts for testing from 10 different proposed catalysts. Four of the catalysts have high acidity level and six of the catalysts have low acidity level. Calculate
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NO LIMIT My concern an 18 year old student is on the future. Therefore I found it a bit unpractical to focus on only one country as this world is becoming a global village. What happens in America today will tomorrow be adapted somewhere in Africa. This essay will asses the social‚ political‚ environmental‚ or familial challenge faced by individuals in an imagined-boundary less country – Africa. Most attention will be on the use of satellite technology because I believe it is an important tool
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Why is freedom so important? What about our constitution makes people liberated from our governments’ all-embracing grasp? I ask these questions because you as American citizens deserve the right to know why “We the people” are united to secure the blessings of liberty we were granted so many years ago. The majority of our Founding Fathers were Federalists. They believed that one large government should not have absolute power over smaller ones. These men played a key role in the fight for independence
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1. A radio station that plays classical music has a “By Request” program each Saturday night. The percentage of requests for composers on a particular night are listed below: Composers Percentage of Requests Bach 5 Beethoven 26 Brahms 9 Dvorak 2 Mendelssohn 3 Mozart 21 Schubert 12 Schumann 7 Tchaikovsky 14 Wagner 1 a. Does the data listed above comprise a valid probability distribution? Explain.
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9.18 a) Using forward stepwise regression to find the best subset of predictor variables to predict job proficiency. The Alpha-to-Enter significance level was set at 0.05 and the Alpha-to-Leave significance level was set at 0.10. The first predictor entered into the stepwise model is X3. SAS tells us that the estimated intercept is -106.13 and the estimated slope for X3 is 1.968. The R2-value is 0.8047‚ mean square error is 76.87. The second predictor entered into the stepwise model is X1.
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1. WHY HUMAN RESOURCES IS IMPORTANT In most companies across the globe‚ the department designated to hire‚ train and retain employees is mainly the HR department and the management of human resources is called HRM since 1980s. It was in the past also referred to as the personnel department and it was mainly responsible for managing the functions of hiring qualified employees to the company‚ as well as managing and developing employees and improving their skills and performance during their presence
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5: Method‚ Analysis‚ Results o Quality Control: Assume that at least one of the tests from Part 4 was rejected (proportion not equal to targeted amount set by Masterfoods). Discuss how you would investigate the operations of the plant to determine why the proportions were off the targeted values. Speculate on three or more possible conditions in plant and bagging process that could have caused the observed results. o Conclusion You should explain what was done as well as the results. Tables can
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Diversified Global holdings group Strategic analysis business analytics department for CCResorts Central coast Strategic analysis BUsiness analytics Department Executive summary This study was produced on behalf of the Business Analytics Department at DGHG for CCResorts in order to examine market research and determine how the venture is progressing. The company provided a data sample from the past 12 months with 200 entries‚ each with 6 variables. The aim of this report is to evaluate
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Concepts 1. What is Inferential statistics? Inferential statistics uses observations of past occurrences or available data i.e. descriptive statistics to make decisions about future possibilities and/or the nature of the entire body of data. Inferential statistics draws conclusions or makes interpretations‚ predictions and inferences about a population based upon an analysis of a sample. 2. Give 2 different techniques which are used in descriptive statistics to represent the data. Tables or
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