Answer:
x=-2
Step-by-step explanation:
5x -10x- 30= 10x
-5x -30 = 10x
-30=15x
x=-2
Answer:
0.74 to 6.06
Step-by-step explanation:
The groups are independnet,
SE(xh bar-xa bar)=sqrt [sh^2/nh+sa^2/na]=sqrt [10.1^2/80+10.3^2/80]=1.61
At df=157, the t critical is 1.65
90%c.i=(xh bar-xa bar)+-tcritical SE(xh bar-xa bar)
=(25.2-21.8)+-1.65*1.61
=0.74 to 6.06
Pretty sure that’s a -13.178294573643404
% difference. I really hope this is right and I really hope it helps!
Answer:
Step-by-step explanation:
Find the area under the standard normal curve between z = 1 and z = 2.
- <em>13.59% or 0.1359</em>
- <em>THANXXX</em>
- <em>HEYAAA</em>
