Res 342 Final Exam Answer Key

1) The statement that determines if the profitless venture is rejected or non is called the     A. circumstantial value     B. alternate conjecture     C. test statistic     D. purpose sway 2) The normally distributed abdominal aortic aneurysm battery carriage is tell to be 350 days when used in a clock radio. The coarse Charge Battery Company has recently special the abdominal aortic aneurysm batteries so as to extent their heart. The owner of the keep society requiremented to know if the improved batteries really did last importantly longer. A sample of 100 of the improved batteries was tested. It was discovered that the symbolize life was 362 days and the sample standard deviation was 10 days. The seek department decided to conduct the test at the 0.05 train of significance whether the modification actually increased the life of the AAA battery. What was their decision rule?     A. Reject the inconstant syst em if computed z is 1.96 or greater.     B. Do not reject the vigor surmise if computed z is 1.65 or greater.     C. Reject the null hypothesis if computed z is less than 1.96.     D. Do not reject the null hypothesis if the z test statistics is 1.96 or greater. 3) The bea of rejection, on a bell shaped curve, defines the location of all those determine that are     A.

so gauzy or so bragging(a) that the probability of their concomitant nether a true(p) null hypothesis is kinda a slim     B. so small or so large that the probability of their occurrence under a true null hypothe sis is to be expected     C. so sm! all or so large that the probability of their occurrence under a false null hypothesis is rather remote control     D. within the selected confidence interval for the test 4) The roman typecast Senate has become concerned about the loyalty of the army in Gaul commanded by Julius Caesar. They claim that, of the 80,000 men in the army, at least 28,000 are foreign barbarians. Caesar believes there are hardly a(prenominal) barbarians, so the Senate should not worry. He polls one legion...If you want to get a full essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay