Download Introduction to Statistics - Quantitative Techniques - Assignment and more Exercises Quantitative Techniques in PDF only on Docsity! 1 Quantitative Techniques in Sociology Homework Assignment #1B: Introduction to Statistics Name: _________________________ Student ID#: _______________ Lab Time: _______ Complete the following questions on a separate sheet of paper. Be sure to: 1) show all of your work, 2) clearly label each problem, 3) put a box around your final answer, 4) use a pencil, 5) type definitions, 6) present your work in a neat and orderly fashion, and 7) staple this cover sheet to your other pages of completed work (do not paper-clip or fold). Remember, homework assignments are designed to help you prepare for exams. The material covered within assignments will be very similar to what appears on each test. Mastery of this material is crucial to pass this course. If you cannot complete these problems by yourself, and in a reasonable amount of time, you will not be able to pass the exam. If you are having troubles figuring out any of the material below see your lab instructor immediately. Each item is worth up to 5 points; for a possible total of 145 points. 1) Define each of the following concepts in your own words. Give a complete and specific definition and illustrate the concept by giving examples. a) Dependent Variable b) Independent Variable c) Descriptive Statistics d) Sample 2) Identify the dependent and independent variables in the following statements. a) Single persons watch more television weekly than married persons. Dependent variable: Independent variable: b) Religious affiliation influences support for abortion. Dependent variable: Independent variable: 3) Indicate the level of variable measurement for the following variables a by circling the appropriate word. a) Religious affiliation continuous nominal ordinal b) GPA continuous nominal ordinal c) Height continuous nominal ordinal d) Attitudes toward nuclear power continuous nominal ordinal e) Religious attendance per week continuous nominal ordinal Docsity.com 2 4) Apply your knowledge of the "order of operations" in mathematics to the following problems. a) y = 7 ÷ 42 * 4 b) y = - (72) * 6 c) ( ) 7 635 2−+ =y d) ( ) 8 98145 2 −+ =y 5) Perform the following operations. note: x1 = 5, x2 = 9, x3 = 12, x4 = 1, x5 = 2, x6 = 3 x7 = 2 a) Σxi = b) Σ(xi - 3) = 6) The following data on annual income in Whitman County are incomplete. Use your knowledge of frequency distributions to fill in the missing values. Interval ƒ % c% $10,000 - 19,999 $20,000 - 29,999 111 49 $30,000 - 39,999 7.3 56.3 $40,000 - 49,999 85 28.3 84.6 $50,000 - 59,999 N 300 Docsity.com
