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Please Note: 1. This is an open book open notes...




Please Note: 1. This is an open book open notes exam. However, you cannot discuss the questions with anybody else including your classmates. Cheating is strictly prohibited in any format including the copy of answers from your classmates. Honest and honor is of the essence! 2. Totally there are 8 questions in the form of calculation or answering. Q1 and Q2 are 3 points each, other questions are 4 points each. Total is 30 points and it is worth 30% of the total quarter. If you have any questions regarding the exam problems, you can call me or send an email to me only in the first two days. 3. You can SUBMIT the answer sheets by hand writing (must be legible), by Word or by Excel document of Windows Operating System. Don?t use any other fancy software that cannot be opened by the Microsoft Windows operated PC. Otherwise, your submission cannot be and WILL NOT BE GRADED. Remember to write your NAME, STUDENT ID, and DATE on your answer sheets. Please label your answer sheets clearly by Q1, Q2,???etc. Make sure you upload your work to the designated area in Moodle System under week 7. When you upload, you are suppose to make all your answer sheets into one file then upload, NOT to chop into several files then upload. I permit you to upload 3 times just to give your 3 chances, in case you make mistakes during the first 2 times, you still have the last chance to accomplish your uploading. Midterm Exam ? STAT500-FA10-1900, UNVA, USA Prepared by Professor Victor J Chen, Ph.D., P.E. - 11/12/2010 Q1. What are the common Statistical issues? Q2. What are the Limitations of Statistics? Q3. In a city, the income tax department had the data as follows for the number of tax payers along with the range of income tax they paid for a particular year. Represent the data graphically to use the Histogram. Tax paid in $ ?000 20-24 25-29 30-34 35-39 40-44 45-49 Total No. of Tax Payers 45 130 200 65 45 15 500 Q4. The following distribution for overtime is given, please draw the Histogram and estimate the Mode from it. Overtime in hours 4-8 8-12 12-16 16-20 20-24 24-28 No. of workers 4 8 16 18 20 18 Q5. In a computerized entrance test, 20 candidates appear on a particular day. Their scores are: 9, 6, 12, 10, 13, 15, 16, 14, 16, 17, 14, 16, 24, 21, 22, 17, 18, 19, 18, 20. Find the Mode and the Quartiles of this data set. Q6. The following data are scores on a management examination taken by a group of 22 people: 88, 56, 64, 45, 52, 76, 54, 79, 38, 98, 69, 77, 71, 45, 60, 78, 90, 81, 87, 44, 80, 41. Find the Mean, Standard Deviation, and the 60th Percentile. Q7. Sample data for daily production rate of fiber body of spots car is given below: 17, 21, 18, 27, 17, 21, 20, 22, 18, 23. The company production manager feels that a standard deviation of more than three bodies a day indicates unacceptable production rate variations. Explain whether this is acceptable? Q8. What are moments? Please indicate four moments by using their mathematical formula and give explanations.,hi i need this to be done by today 12 so please let me know if can do that otherwise i have go to some other site quickly thank you,hi this is only question you have answered please i need all the questions to be answered.please let me know if you have any questions


Paper#11470 | Written in 18-Jul-2015

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