MATH 110 Module 10 Exam (RATED A+) Questions and Answers- Portage Learning

MATH 110 Module 10 Exam (RATED A+) Questions and Answers- Portage Learning Exam Page 1 Find the value of X2 for 20 degrees of freedom and an area of .010 in the right tail of the chi- square distribution. X2=37.566 Answer Key Exam Page 2 Find the value of X2 for 13 degrees of freedom and an area of .100 in the left tail of the chi- square distribution. (1-.100) = 0.900 X2 = 7.042 Answer Key Exam Page 3 Find the value of X2 values that separate the middle 80 % from the rest of the distribution for 17 degrees of freedom. (1-.80) = .20 (.20/2) = .10 X2(.90) = 10.085 X2(.10) = 24.769 Answer Key Exam Page 4 Find the critical value of F for DOF=(4,17) and area in the right tail of .05 DOF(4,17) F = 2.96 Answer Key Exam Page 5 The mayor of a large city claims that 30 % of the families in the city earn more than $ 100,000 per year; 60 % earn between $ 30,000 and $ 100,000 (inclusive); 10 % earn less than $ 30,0