STAT 200 Final Examination Fall 2017 OL1 Page 1 of 10 STAT 200 Introduction to Statistics Name______________________________ Final Examination: Fall 2017 OL1/US1 Instructor __________________________ Answer Sheet Instructions: This is an open-book exam. You may refer to your text and other course materials as you work on the exam, and you may use a calculator. Record your answers and work in this document. Answer all 20 questions. Make sure your answers are as complete as possible. Show all of your work and reasoning. In particular, when there are calculations involved, you must show how you come up with your answers with critical work and/or necessary tables. Answers that come straight from calculators, programs or software packages without explanation will not be accepted. If you need to use technology to aid in your calculation, you have to cite the source and explain how you get the results. For example, state the Excel function along with the required parameters when using Excel; describe the detailed steps when using a hand-held calculator; or provide the URL and detailed steps when using an online calculator, and so on. Show all supporting work and write all answers in the spaces allotted on the following pages. You may type your work using plain-text formatting or an equation editor, or you may handwrite your work and scan it. In either case, show work neatly and correctly, following standard mathematical conventions. Each step should follow clearly and completely from the previous step. If necessary, you may attach extra pages. You must complete the exam individually. Neither collaboration nor consultation with others is allowed. It is a violation of the UMUC Academic Dishonesty and Plagiarism policy to use unauthorized materials or work from others. Your exam will receive a zero grade unless you complete the following honor statement. Please sign (or type) your name below the following honor statement: I understand that it is a violation of the UMUC Academic Dishonesty and Plagiarism policy to use unauthorized materials or work from others. I promise that I did not discuss any aspect of this exam with anyone other than my instructor. I further promise that I neither gave nor received any unauthorized assistance on this exam, and that the work presented herein is entirely my own. Name _____________________ Date___________________ STAT 200 Final Examination Fall 2017 OL1 Record your answers and work. Problem Number Solution Answer: (a) (b) (c) (d) 1 (e) Justification: Answer: (a) (b) (c) 2 (d) (e) Justification: Page 2 of 10 STAT 200 Final Examination Fall 2017 OL1 Page 3 of 10 Answer: (a) Study Time (in hours) Frequency Relative Frequency 0.0 - 5.0 6 5.1 - 10.0 24 10.1 - 15.0 50 15.1 -20.0 3 20.1 - 25.0 Total (b) (c) Work for (a) and (b): Answer: (a) (b) (c) 4 0.35 (d) (e) Work for (a), (b), (c) : 200 STAT 200 Final Examination Answer: (a) (b) 5 Work for (a) and (b): Answer: (a) (b) Work for (b): 6 Answer: (a) (b) Work for (a) and (b): 7 Fall 2017 OL1 Page 4 of 10 STAT 200 Final Examination Fall 2017 OL1 Answer: (a) (b) 8 Work for (a) and (b): Answer: (a) x -$10 $10 $50 $100 (b) 9 Work for (a) and (b): Answer: (a) 10 (b) Work for (b) : P(x) Page 5 of 10 STAT 200 Final Examination Answer: (a) (b) Work for (a) and (b): 11 Answer: (a) (b) 12 Work for (a) and (b): Answer: Work: 13 Fall 2017 OL1 Page 6 of 10 STAT 200 Final Examination Answer: Work: 14 Answer: (a) . (b) (c) (d) Work for (b) and (c): 15 Fall 2017 OL1 Page 7 of 10 STAT 200 Final Examination Answer: (a) (b) (c) (d) Work for (b) and (c): 16 Answers: (a) (b) (c) (d) Work for (b) and (c): 17 Fall 2017 OL1 Page 8 of 10 STAT 200 Final Examination Answer: (a) (b) (c) (d) 18 Work for (b) and (c): Answer: (a) (b) Work for (a) and (b): 19 Fall 2017 OL1 Page 9 of 10 STAT 200 Final Examination Fall 2017 OL1 Page 10 of 10 Answer: (a) Source of Variation Factor (Between) Error (Within) Total (b) (c) (d) Work for (a), (b) and (c): 20 Sum of Squares (SS) Degrees of Freedom (df) Mean Square (MS) 299 N/A 42.5 553.05