6) A random sample of n = 25 students participated in a study to determine whether keyboard skills are improved by taking a typing
course. The typing speed of each student was recorded at the start of the course and again at the end of the course. The mean
difference for the sample is xd - 32, with a standard deviation of sd - 10. What is the 99% confidence interval for the mean
difference in typing speed?
A)
(25.818, 38.182)
B)
(26.406, 37.594)
(26.850, 37.150)
D)
(27.016, 36.984)

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.

solution:

we have to construct

∠m nt ≅ ∠p qr

the steps to draw this construction are

step 1: use a compass to draw an arc from point q which intersects the side pq at point a and the side qr at point b.

step 2: draw a segment nt and use the same width of the compass to draw an arc from point n which intersects the segment nt at a point x.

step 3:

step 4: join points n and y using a straightedge.

step 3:

option (d).maintaining the same width of the compass as ab, draw an arc from point x such that it intersects the arc drawn from n in a point y.

to draw   congruent angles , 1. width of compasses while drawing two angles should be same i.e from point at which angle has to be drawn, 2.the distance between the two points where the compass intersects the two sides should be same while drawing any two congruent angles.

idk u tell me

step-by-step explanation:

3

step-by-step explanation: