Cotinine levels were measured in a group of smokers (n = 31, x = 172.48 ng/mL, s = 119.50 ng/mL) and a group of nonsmokers not exposed to tobacco smoke (n = 41, x = 16.35 ng/mL, s = 62.53 ng/mL). Cotinine is a metabolite of nicotine, meaning that when nicotine is absorbed by the body, cotinine is produced. Test the claim that the variation of cotinine in smokers is greater than the variation of cotinine in nonsmokers not exposed to tobacco smoke. Use a 0.05 significance level. • What is the critical value? A. 1.84 В. 2.39 C. 1.74 D. 2.20 • What is the test statistic and conclusion? A. 3.65; Reject Ho B. 3.65; Fail to reject Ho C. 3.07; Reject Ho D. 3.07; Fail to reject Ho

Cotinine levels were measured in a group of smokers (n = 31, x = 172.48 ng/mL, s = 119.50 ng/mL) and a group of nonsmokers not exposed to tobacco smoke (n = 41, x = 16.35 ng/mL, s = 62.53 ng/mL). Cotinine is a metabolite of nicotine, meaning that when nicotine is absorbed by the body, cotinine is produced. Test the claim that the variation of cotinine in smokers is greater than the variation of cotinine in nonsmokers not exposed to tobacco smoke. Use a 0.05 significance level. • What is the critical value? A. 1.84 В. 2.39 C. 1.74 D. 2.20 • What is the test statistic and conclusion? A. 3.65; Reject Ho B. 3.65; Fail to reject Ho C. 3.07; Reject Ho D. 3.07; Fail to reject Ho

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter2: Equations And Inequalities

Section2.7: More On Inequalities

Problem 44E

See similar textbooks