(5) VIAH : Jassie Gill (Official Vide X Course: STAT 100-101 (Winter 20. X WeBWork : STAT-100-101 : Assig X Course Hero X + V X C a urwork2.edbian.org/webwork2/STAT-100-101/Assignment8/5/?key=hkrzrqacTdi1rJRiitTREB6$4DGMKGHk&user=200455851&effectiveUser=200455851 WeBWork MAA Logged in as 200455851 Log Out MATHEMATICAL ASSOCIATION OF AMERICA MAIN MENU C a urwork2.edbian.org/webwork2/STAT-100-101/Assignment8/6/?effectiveUser=200455851&user=200455851&key=hkrzrqacTdi1rJRiitTREB6s4DGMKGHK WeBWork MAA Logged in as 200455851. Log Out MATHEMATICAL ASSOCIATION OF AMERICA MAIN MENU webwork / stat-100-101 / assignment8 / 6 Courses Homework Sets Assignment8 Assignment8: Problem 6 Problem 6 User Settings Previous Problem Problem List Next Problem Grades (3 points) Problems Two different vaccines (Brand A and Brand B) are available for an infectious disease. Both vaccines provide protection to the disease for several months, until the efficacy begins to wane. A claim is made that the mean protection time (in days) for Brand A is higher than for Brand B. Problem 1 A sample of 142 patients that received Brand A is studied. Their mean protection time was 124 days with standard deviation 6.9 days. A sample of 163 patients that Problem 2 received Brand B had mean protection time 122.5 days with standard deviation 6.6 days. Problem 3 Problem 4 What is the test statistic for this hypothesis test:] Problem 5 At the 5% significance level, we can conclude that ? Problem 6 ? Problem 7 the mean protection time for Brand A isn't higher than for Brand B. Problem 8 Note: You can earn partial credit on this problem. the mean protection time for the two Brands is the same. the mean protection time for Brand A is higher than for Brand B. Preview My Answers Submit Answers we cannot draw any conclusions at all. the mean protection time for Brand B is higher than for Brand A. You have attempted this problem 0 times. remainin Email Instructor at 04/01/2022 at 02:19pm(5) VIAH : Jassie Gill (Official Vide x Course: STAT 100-101 (Winter 20. X WeBWork : STAT-100-101 : Assig X Course Hero X + V X C a urwork2.edbian.org/webwork2/STAT-100-101/Assignment8/7/?key=hkrzrqacTdi1rJRiitTREB6s4DGMKGHk&user=200455851&effectiveUser=200455851 WeBWork MAA Logged in as 200455851 Log Out MATHEMATICAL ASSOCIATION OF AMERICA MAIN MENU C a urwork2.edbian.org/webwork2/STAT-100-101/Assignment8/8/?effectiveUser=200455851&user=200455851&key=hkrzrqacTdi1rJRiitTREB6s4DGMKGHK WeBWork MAA Logged in as 200455851. Log Out MATHEMATICAL ASSOCIATION OF AMERICA MAIN MENU webwork / stat-100-101 / assignment8 / 8 Courses Homework Sets Assignment8 Assignment8: Problem 8 Problem 8 User Settings Previous Problem Problem List Next Problem Grades (3 points) We are interested if a training program makes a significant difference in the mean daily sales of employees. To test this, a sample of 8 employees is selected. Their Problems mean daily sales before and after taking the program are listed below: Va 1 2 3 4 5 6 7 8 Problem 1 Before 12 14 13.5 14.5 13.5 12.5 14.5 13.5 Problem 2 After 16 15.5 16 14 13.5 13 15.5 14 Problem 3 If we define the variable "D" as "sales after minus sales before", calculate Problem 4 Problem 5 D = Problem 6 and Problem 7 Problem 8 SD = The test statistic for the associated hypothesis test would be Note: Give all answers to at least three decimal points. Note: You can earn partial credit on this problem. Preview My Answers Submit Answers