Question

WelBWork: Math125-Zin X X M Inbox (523)-gracesalis G Suppose a group of 900 X syllabus Mat121 31,201 X ttps://mathwebworks.wcupa.edu/webwork2/Math125-Zimmer/hw4/3/7key-fK6C321A1aclhwoVzhOSndpcsy6VCOe68user-gs9" Previous Problon Next Problem Problem List (1 point) Two independent samples have been selected, 51 observations from population 1 and 62 observationis from population 2. The sample means have been calculated to be zi 11.8 and z 13.1.From previous experience with these populations, it is known that the variances are a 36 and a 37 (a) Find a- answer 0.05. (b) Determine the rejection region for the test of Ho: (-pa)3.58 and H: (41-42)>3.58 Use a (c) Compute the test statistic The final conclustion is A. We can reject the null hypothesis that (41-2)3.58 and accept that (4-4)>3.58 B. There is not sufficient evidence to reject the null hypothesis that (4-H)3.58. (d) Construct a 95 % confidence interval for (4-42). <(4-42) S Note: You can earn partial credit on this problem Preview My Answers Submit Answers HI

Answer 1

Saluton Given that a) Hore we have Pind to 36 + 37 S2 10s88tos671 b) aiven And also have He -)3.8 we So the Citic alve of iven ios we Reect

ind the des* stah'shc we have to c Hene Cuf- (u.8-13.53) u34 (38-58)

3 P-Value 0.999 ou P.value is geater than the Signicance level not Suicient evidence to xeect the hol hyfalhees So, thene that (u 3 nd d Hee we have do Cohfidente inteval o (ur M 2 E3)6 .(ut3«) 337, 0.939 3.537 Oi937