Elupropion and Nicotine are the most common methods utilized in assisting smokers quit their addiction. Unfortunately, these methods aren't effective for everyone however, with approximately 45% of people relapsing. Assume time taken to relapse is normally distributed with a mean of 8.5 days and a standard deviation of '1 .9 days, answer the following questions. Question 18 4 pts What is the probability that a randomly selected smoker 1I'ilill last at least 5 days? Give your answer using 3 decimal points. Question 19 4 pts What i3 the probability that a randomly selected smoker Will relapse in i633 than '10 days? Give your answer using 3 decimal points. Question 20 4 pts What is the probability that a randomly selected smoker will have a relapse time between 5 and 10 days? Give your answer using 3 decimal points. Question 21 4 [3125 How many days would a randomly selected smoker had to have lasted (in terms of relapse time) irthey were to be placed within the top 3% of all smokers. Give your answer approximately, in days, with no decimal points