Contingency Tables

  NSTRUCTIONS: ) Watch this video that shows how to set up a Contingency Table. It is available at this link https://www.youtube.com/watch?v=hpiI_HZfmIY b) The video below shows calculation of Chi-Square statistics using Contingency Tables https://www.youtube.com/watch?v=ODxEoDyF6RI. c) You can also read chapter 18 of the Exercising Essential Statistics workbook for Excel procedures to perform Chi-Square test (look at page 114) Q1. Imagine that the director of the counseling center at Valdosta State University wants to examine stress levels of students. From the student directory, she randomly chooses 100 of the 12,500 students and assesses their stress levels in a diagnostic interview. She reports that the average stress level is 10 on a scale of 1-50, a score she knows to be moderately high for college students. She concludes that the students at this institution have a moderately high stress level. [1 point] What is the sample? What is the population? What is the descriptive statistic? What is the inferential statistic? Q2. What is a contingency table? Identify all the features of contingency tables: title, clear column and row headings, data cell frequencies, column percentages, marginal totals, and grand totals. [1 point] Q3. Please solve the case study problem in chapter 9 of Wang (Page 193) [1.5 points] Q4. Solve practice problem 9-3 in chapter 9 of Wang (Page 198) [1.5 points]