Determine the probability of the treatment group's mean being greater than the control group's mean by 8 points or more. Then complete the statements.

The significance level is set at 5%, and the probability of the result is
is_% which is _
the significance level. The result is
_

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations