2022 Fall Session Home Announcements D Question 28 Press F11 to exit full screen 12 pts Account Assignments Simple Syllabus Suppose that among a population of adolescent cigarette smokers the mean number of cigarettes smoked per day is u =16.4 with a standard deviation o = 4.8 Dashboard cigarettes. A counsellor has developed a program of information designed to reduce cigarette smoking among adolescents and ask you to test this program. You Discussions randomly select 100 adolescent smokers and enrolled them in the program. After the program ends you obtain a measure of the number of cigarettes smoked each Courses Grades 1 day by each subject. You find the sample mean is x = 15.1. The counsellor is confident that there is a decrease in the mean number of cigarettes smoked per day. Do the data indicate that this is the case. Use a level of significance a = 0.05 Pages . a)Establish the Null and Alternative Hypothesis Calendar Files . b) Compute the z value of the sample test statistic Quizzes . c)Find the p-value use standard normal table Inbox . d) Will you reject the null hypothesis Modules Collaborations History O a) Ho: u = 16.4, H1: u > 16.4 Chat b) z = 2.71, Help My Credentials c) p-value = 0.0034 > 0.05, d) Reject Ho: u =16.4 Office 365 ( a) Ho: H = 16.4, H1: 16.4, b) z = -2.71, BryteWave Course Materials c) p-value =0.0034 $ 0.05, Follett Discover d) No, Fail to reject Ho: u =16.4 ( a) Ho: H = 16.4, H1: u 0.05 d) Fail to reject Ho: H =16.4 D Question 29 8 pts2022 Fall Session Home D Question 29 8 pts Announcements Account Assignments A random sample of the height of 6 players were taken form two teams. The sample mean and the sample standard deviation for team 1 was 75 and 2.45 le Syllabus respectively and the sample mean and sample standard deviation for team 2 was 75 and 6.24, respectively. Dashboard a) Find the Coefficient of Variation (CV) for the height of team 1 Discussions 9 b) Find the Coefficient of Variation (CV) for the height of team 1 Courses Grades c) Comment on the differences Pages Calendar Files O a) Team 1: 3.27%, Quizzes b) Team 2: 8.32% , Inbox Modules ) Although the average heights are the same for both teams, there is no variation in the height of the players in team 1 than in team 2. Collaborations History O a) Team 1: 3.27%, Chat (?) b) Team 2: 8.32% , Help My Credentials c) Although the average heights are the same for both teams, there is a greater variation in the height of the players in team 2 than in team 1. Office 365 O a) Team 1: 3.27%, Portfolium b) Team 2: 8.32% , Class Climate c) Although the average heights are the same for both teams, there is a greater variation in the height of the players in team 1 than in team 2. Surveys Library Resources Cisco Webex D Question 30 8 pts BryteWave Course Materials Suppose that 80% of all new products introduced in a chain of merchant store fail (are taken off the market) within 2 years. If the chain introduces 66 new products, Follett Discover what is the probability that within 2 years 58 or fewer fail O 0.9059 O 0.9959 O 0.8897 O 0.9599 K