Question

Level of nicotine in cigarettes. According to data from the Tobacco Institute Testing Laboratory, Camel Lights King Size cigarettes contain an average of 1.4 milligrams of nicotine. An advocacy group commissions an independent test to see if the mean nicotine content is higher than the industry laboratory claims. (a) What are H, and H2? (b) Suppose that the test statistic is z = 2.36. Is this result significant at the 5% level? (c) Is the result significant at the 1% level? Use the following for questions 1 and 2: a-mu =1.4 b - xbar = 1.4 c - mu >1.4 d-xbar> 1.4 e-mu not = 1.4 f - xbar not = 1.4 1. Ho 2. Ha 3. Is z = 2.36 significant at the 5% level. y=yes, n=no 4. Is z = 2.36 significant at the 1% level. y=yes, n=no