Given a 90 confidence interval for mu1mu2 as 5 5 What can be

Given a 90% confidence interval for mu1-mu2 as (-5, 5). What can be concluded?

A. mu1<mu2
B. nothing
C. mu1>mu2
D. mu1= -5 or 5 and mu2 = 10 or 5
E. mu1=mu2

Solution

[ANSWER] C. mu1>mu2

In interprets that, diffrence between the mean be includes the value zero. at value of zero it always conclude that mu1=mu2 In NULL, mu1>mu2 in alternative