Bupropion 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 will last at least 5 days? Give your answer using 3 decimal points. Question 19 4 pts What is the probability that a randomly selected smoker will relapse in less 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 pts How many days would a randomly selected smoker had to have lasted (in terms of relapse time) if they were to be placed within the top 3% of all smokers. Give your answer approximately, in days, with no decimal points. Data have been collected over a period of several months on the means of transportation used by most persons commuting to work into the city ofce of a large business rm. The results have been listed below: Number Of a" commuters Answer the questions below to conduct a hypothesis test to determine if there is a signicant difference among method of getting to work for this sample. Use a = 0.05. D Question 22 1 pts In the first step we state the hypothesis that will be used: HO: [ Choose ] v H1: [ Choose ] v D Question 23 1 pts What test we need to use in this hypothesis testing? Edit View Insert Format Tools Table0= 1 O There is no significant difference among the methods of getting to work O in this sample The variance is known O u is different than zero O Train is faster than the bus O H = 0 O The variance is unknown O All the means of methods of getting to work are O significantly different with each other There are significant differences among the methods of getting to work O in this sampleThe number of people that are using the train equals to O the number of people that are using the bus The mean equal to zero OQuestion 24 1 pts The degrees of freedom for this test is Question 25 1 pts The critical value for this test with the above decrees of freedom and the given signicant level, is: (Give your answer using 3 decimal points) Question 26 3 pts Step 3: Calculate the value of the needed test statistics for needed test. After the calculations the value of the test statistics is: (Give your answer using a maximum of 2 decimal points - if needed) Question 27 2 pts Step 4: Conclude: We (reject, fail to reject, ...) | the null hypothesis and we conclude that there {are no, are not any, are, is, is not, exist, exist not, is no, are some...) signicant differences among the methods that people are getting to work. Influenza A is a virus which causes illness in humans and many other animal species. Once the virus finds a host, it becomes a major concern and is fatal in some cases. A microbiologist wants to know if a person's age affects the severity of conditions for people who contract Influenza A. Consider the table below and answer the questions that follow. Outcome Mild conditions Severe conditions Child 114 167 Adult 124 112Question 28 2 pts State the null and the alternative hypotheses for the above scenario: HO: [ Choose ] V H1: [ Choose ] Vthe number of people with severe conditions is significantly different than O the number of people with mild conditions the mean of Influenza A is O zero the number of people with severe conditions is not significantly different than O the number of people with mild conditions the mean of Influenza A is O not zero more children have severe conditions rather than mild O conditions a person's age does not affect the severity of O conditions for people who contract Influenza A a person's age affects the severity of conditions O for people who contract Influenza AQuestion 29 Complete the totals on the table: Mild conditions Severe conditions Question 30 3 pts Using the table above; calculate the expected values (use exactly two decimal places, no spaces or blanks) for each outcome (write your answers in the table below). You can write for example: 66.45 or 667.34 or EXPECTED VALUES Mild Conditions Severe Conditions CHILD ADULT Question 31 3 pts Calculate the chi-square test statistic for this scenario. Use exactly 3 decimal points for your answer. D Question 32 0.75 pts Calculate the degrees of freedom for this scenario. Use exactly 0 decimal points for your answer. D Question 33 0.75 pts What is the critical value for the above scenario for significance level 0.01. Use exactly 3 decimal points for your answer.Question 34 2 pts Conclude: We (reject, fail to reject, m)' the null hypothesis and we conclude that a person's age {fail to reject, accept, reject, does, does not, does't, run, ...) affect the severity of conditions for people who contract Inuenza A