Business Statistics MGSC-372 Review Normal Distribution The Normal Distribution aka The Gaussian Distribution The Normal Distribution y 1 f ( x) e 2 1 x 2 2 x Areas under the Normal Distribution curve -3 -2 - 68% 95% 99.7% + +2 +3 X = N( ‚ 2 ) Determining Normal Probabilities Since each pair of values for and represents a different distribution‚ there are an infinite number of possible normal distributions. The number of statistical tables
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APPROACH TO HR DATA COLLECTION‚ STORAGE AND USAGE Within X data is being collected in a systematic approach of set guidelines. Subsequently stored and made easily available to all relevant people. Reasons why X collets HR data X needs to keep certain information in order to: satisfy legal requirements provide relevant information in decision making and for consultation requirement record contractual arrangements and agreements keep contact details of employees provide
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HOMEWORK 2 FROM CHAPTER 6 and 7‚ NORMAL DISTRIBUTION AND SAMPLING Instructor: Asiye Aydilek PART 1- Multiple Choice Questions ____ 1. For the standard normal probability distribution‚ the area to the left of the mean is a. –0.5 c. any value between 0 to 1 b. 0.5 d. 1 Answer: B The total area under the curve is 1. The area on the left is the half of 1 which is 0.5. ____ 2. Which of the following is not a characteristic of the normal probability distribution? a. The mean and median are
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Activity 1 Reasons why organisations need to collect HR Data. It is important for organisations to collect and retain HR data as this will be key for strategic and HR planning. It will also help to have all the information necessary to make informed decisions‚ for the formulation and implementation of employment policies and procedures‚ to monitor fair and consistent treatment of staff‚ to contribute to National Statistics and to comply with statutory requirements. The key organisational
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Data Collection QNT/351 July 10‚ 2014 There are many times when companies have to collect data to come to a conclusion about an issue. The data may be collected from their employers‚ their competition or their consumers. BIMS saw that there had been an average turnover that was larger then what the company had seen in the past. Human Resources decided that they would conduct a survey to see what had changed in the company from the employee’s point of view. They attached
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the world market place‚ and is an excellent developmental tool for its employees. 2.0INTRODUCTION One of the fundamental challenges facing companies of all sizes is determining how to organize and staff their operations. This task becomes even more complex when a company decides to do business across national borders. A small business owner may start out as the only employee in his or her company. In this case organization and staffing simply involves the efficient allocation of the owner’s time
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following year. Compare graphs. 2. Analyze the following box-and-whisker plot. What are the median value for the whole sample‚ the median values for each half‚ and the range? 3. Students in Mrs. Singh’s math class were asked if they can watch television and do math homework at the same time. According to the results shown on the right‚ are males or females more likely to think they are able to do this? Explain. (The darker area represents Males) 4. Dexter is 45 years old
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Education has faced race‚ gender and ethnic problems for many years. This continuous problem in all most likelihood will not be solved. Educational issues involving race‚ gender‚ and ethnicity of all schools will always cause controversy in society as long as there is prejudice and hatred. Education should not look at ones race. We are who we are because that is the way that God intended us to be. Many blacks are prejudice and have hatred in their hearts for things that happen in the past that this
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Adoption of Health Data Standards Health Data Standards (HDS) are a key part of the construction of a National Health Information Network (NHIN). Having these standards will increase interoperability of various groups and organizations‚ improve safety‚ lower costs‚ and enable providers in all aspects of healthcare to access the same patient medical information easily and efficiently. W. E. Hammond (2005)‚ discusses the urgent need for HDS‚ the process of creating these standards‚ problems and issues
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Data Preprocessing 3 Today’s real-world databases are highly susceptible to noisy‚ missing‚ and inconsistent data due to their typically huge size (often several gigabytes or more) and their likely origin from multiple‚ heterogenous sources. Low-quality data will lead to low-quality mining results. “How can the data be preprocessed in order to help improve the quality of the data and‚ consequently‚ of the mining results? How can the data be preprocessed so as to improve the efficiency and ease
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