b The nicotine content in cigarettes of a certain brand is

Last updated: 10/18/2023

b The nicotine content in cigarettes of a certain brand is normally distributed with mean in milligrams u and standard deviation 0 1 The brand advertises that the mean nicotine content of their cigarettes is 1 5 but you believe that the mean nicotine content is actually higher than advertised To explore this you test the hypotheses Ho 1 5 Ha 1 5 and you obtain a P value of 0 052 Which of the following is true A You have failed to obtain any evidence for Ha OB There is some evidence against Ho and a study using a larger sample size may be worthwhile O c This should be viewed as a pilot study and the data suggests that further investigation of the hypotheses will not be fruitful at the a 0 05 significance level D At the a 0 05 significance level you have proven that Ho is true