A study by a geological research team said that a new piece of equipment designed for early earthquake detection is not effective
based on their recent study of 40 pieces of equipment they have
stationed near earthquake active zones with a = 0.05. However, the
manufacturer of the equipment claims this study was flawed and
their equipment is good. The research team is considering
rerunning the study with the intention of increasing the power of
this test. If the equipment really does detect earthquakes early,
which of the following would ensure an increase in the power of
the test?
(A) Move the equipment to three randomly chosen new locations.
(B) Change a = 0.05 to a = 0.02.
(C) Run a two-sided test instead of a one-sided test.
(D) Increase the sample size to 60 pieces of equipment being
tested.
(E) Decrease the sample size to 20 pieces of equipment being
tested.

nothjing

step-by-step explanation:

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.

r and t.

both are 64 degrees.