A statistical analysis of consumer confidence and unemployment numbers An analysis in R Clemens Timmermans (s0867144) 5/1/2009 INTRODUCTION Statistics matters. CBS.nl presents Dutch facts every month and to make sense of this data statistical analysis is a must. Without this kind of analysis these numbers are just numbers without meaning. For this paper the input came from CBS.nl as well, and here I will outline what the predictive capability of the consumer confidence indicator is for unemployment
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of correct answers will be, if an entire class answers the quiz by guessing ? [2 marks] b) The incomes of senior executive in a large corporation are normally distributed with a standard deviation of RM 1200. A cutback is pending, at which time those who earn less RM 28,000 will be discharged. If such a cut represents 5% of the junior executives, what is the current mean salary of the group of senior executives?
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0.6883169 | SKEWNESS | =SKEW(B2:B31) | 30 | | -0.6854225 | KURTOSIS | =KURT(B2:B31) | 10 | | | | | 60 | | | | | 65 | | | | | 10 | | | | | 41 | | | | | OUTPUT PROBLEM 4 APPLICATIONS OF STANDARD NORMAL DISTRIBUTION | | | | | | | | | | | | | | | | | 12 | 10 | 9 | 10 | 12 | 15 | 15 | 16 | 15 | | 20 | 22 | 23 | 10 | 12 | 10 | 14 | 16 | 17 | | 18 | 20 | 20 | 21 | 10 | 12 | 23 | 10 | 10 | MEAN | | | =AVERAGE(B4:J6) | | |
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................................................................. 4 2.5 POPULATION MEAN & VARIANCE ......................................................................................................................... 4 2.6 BIVARIATE DISTRIBUTION .................................................................................................................................... 5 2.7 PORTFOLIO
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Part 1. Basic Concepts of Statistics Basic Concepts of Statistics • Every four years, we suffer through an affliction, the presidential election. • Months before the election, public media will inform us that a poll conducted by the opinion research shows that a candidate gains support of more than 50 percent of voters. 1 2 Basic Concepts of Statistics • However, the high percent of support will be with a margin of error of plus or minus 3%. • What is meant by the term margin of error
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Standard Normal Distribution Table The table presents the area between the mean and the z score. z 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 0 0.0000 0.0398 0.0793 0.1179 0.1554 0.1915 0.2257 0.2580 0.2881 0.3159 0.3413 0.3643 0.3849 0.4032 0.4192 0.4332 0.4452 0.4554 0.4641 0.4713 0.4772 0.4821 0.4861 0.4893 0.4918 0.4938 0.4953 0.4965 0.4974 0.4981
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Starbucks Queuing Model Inevitably, for those coffee drinkers that don’t have a coffee machine at home, it is a fact of life that you would have to wait in lines at your closest coffee shop to get that glorious cup of Joe. For the one of the most prolific coffee chains, Starbucks, this is a problem that needs to be addressed as customer service is one of the cornerstones of the industry. In order maintain a good customer service, Starbucks must minimize the in-line wait time and the service times
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questions. To best simulate the exam day experience, candidates are advised to allocate an average of 1.5 minutes per question for a total of 180 minutes (3 hours) for this session of the exam. Topic Minutes 1-18 Ethical and Professional Standards 27 19-32 Quantitative Methods 21 33-44 Economics 18 45-68 Financial Statement Analysis 36 69-76 Corporate Finance 12 77-88 Equity Investments 18 89-94 Derivative Investments 9 95-106
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* CHRGS is the total expenses charged to that patient. * PHYS is a code identifying the physician. * PAYOR indicates the type of insurance the patient carried. The fundamental items for this study focus on financial data related to normal
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SAMPLE EXAMINATION The purpose of the following sample examination is to provide an example of what is provided on exam day by ASQ, complete with the same instructions that are provided on exam day. The test questions that appear in this sample examination are retired from the CSSBB pool and have appeared in past CSSBB examinations. Since they are now available to the public, they will NOT appear in future SSBB examinations. This sample examination WILL NOT be allowed into the exam room. Appendix
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