If a 90% confidence interval for the difference of means μ1 – μ2 contains all negative values, what can we conclude about the relationship between μ1 and μ2 at the 90% confidence level? we can conclude that μ1 > μ2. we can conclude that μ1 < μ2. we can not make any conclusions. we can conclude that μ1 = μ2.

The white diagonal stripe creates four angles when it passes through two lines (the top and bottom edges of the flag). to prove that these edges are parallel, an angle's alternate angle (which is above or below its adjacent angle) should be congruent to it.