Question

INFOCONU T TUNCLASSIFIED INTETTE t-table.pdf: INTRO TO STAT x ST314 WA Homework #56> su Canvas Login - Starting You X O Course Modules INTRO TO FPCON Bravo - X Sy 2.571\cdotsqrt((0.54-235- x + X → C https://www.webassign.net/web/Student/Assignment-Responses/subrot?dep=2233783 0 *** Show My Work (Optional) 5. 0/1 points 3/4 Submissions Used My Notes Ask Your Teacher Suppose pi and uz are true mean stopping distances at 50 mph for cars of a certain type equipped with two different types of braking systems. The data follows: n = 5, *1 = 114.6, 51 = 5.01, n2 = 5, x2 = 129.6, and s2 = 5.39. Calculate a 95% CI for the difference between true average stopping distances for cars equipped with system 1 and cars equipped with system 2. Use the conservative degrees of freedom, min(n-1,n2-1) (Round your answers to two decimal places.) 22.59 You may need to use the t table to complete this problem. Show My Work (Optional) 6. 1.5/3.5 points 214 Submissions Used My Notes Ask Your Teacher Let i and a denote true average densities for two different types of back. Assuming normality of the two density distributions, test: Ho: 41-42 = 0 versus Ha: - 420 Use the following data:

Answer 1

have. 4.6, SiS.01 we 129.6 (on Aideni e 9s7. Inlewal fer 2 cndn) (Foum tae) 2- 3 06 0 = [ (14. 129.6) C2-3060 =( -15 1 (2-3060 3-2909) : [-is t1.s888 L-22-S8 -.41

from interval we can say that it is free from any null value or zero value hence it is significant at given level of significanct.