Name: ________________________________________ Week 3 - Answer Sheet Chapter 8, Problem 4 Chapter 9, Problem 3 a. The null hypothesis that there is no relationship between the type of music a person listens to and his crime rate (p < .05) b. The null hypothesis that there is no relationship between the amount of coffee consumptions and GPA (p = .62) c. The null hypothesis that there is a negative relationship between the number of hours worked and level of job satisfaction (p = .51) Chapter 9, Problem 6 Chapter 10, Problem 3 a. Bob wants to know if the weight loss for his group on the chocolate-only diet is representative of weight loss in a large population of middle-aged men. b. The health department is charged with finding out if the rate of flu per thousand citizens for the past flu season is comparable to the average rate of the past 50 seasons. c. Blair is almost sure that his monthly costs for the past year are not representative of his average monthly costs over the past 20 years. Chapter 8, Problem 10 Math Class Mean Class Standard Deviation 81 2 Reading Class Mean Class Standard Deviation 87 10 Raw Score Noah Talya Math 85 87 Reading 88 81 Average 86.5 84 z Score Noah Talya Math Reading Average Chapter 10, Problem 4 Flu cases this past flu season in the Oshkosh school system were about 15 per week. Entire State = 16 average week, with std deviation = 2.35 Use a sample size of 42 Answers SEM z value