Answer: 385
Step-by-step explanation:
sample size n = pq(z/E)^2 = 0.6*(1-0.6)*(1.96/0.05)^2 =(NNN) NNN-NNNN
Round up to 369
Answer: 369
b. how large a sample would be necessary if no estimate were available for the proportion supporting current policy?
sample size n = pq(z/E)^2 = 0.5*0.5*(1.96/0.05)^2 = 384.16
Round up to 385
Answer: 385
Answer:
(2.3, 4.75)
Step-by-step explanation:
The point where 2 lines intersect is the solution to the system of equations.
Answer:
Step-by-step explanation:
±3√2. Recall that 2 actually has two roots, one positive and the other negative.
Answer:
260
Step-by-step explanation:
100/5=20
8*20=160
100+160=260
Let x represent the smallest angle. Then the largest is 3x, and the remaining angle is 180-4x. The problem statement tells us
.. 3x > 180 -4x > x
Adding 4x gives us
.. 7x > 180 > 5x
or
.. 36 > x > 180/7 = 25 5/7
The angles, smallest to largest, are
.. x, 4(45 -x), 3x
where 25 5/7 < x < 36
The angles could be, for example, any of ...
.. 26°, 76°, 78°
.. 30°, 60°, 90°
.. 32°, 52°, 96°
.. 35°, 40°, 105°
and an infinite number of other possibilities.
