Answer:
Following are the answer to the given points.
Step-by-step explanation:
In point a:
The confidence interval for p is 95%
using formula:
In point b:
Because 0.22 is not within the trust interval, they have enough proof of H0 at level 0.05.
In point c:
For the percentage for samples,
from ratio p
from sample ratio
In point d:
Standard deviation is used to measure the interval of confidence
the distance formula is d= (x2−x1)²+(y2−y1)²
so plug in d=(3+4)²+(-6-4)²
simplify d=(7)²+(-10)²
d=49+100
d=149
I belive it would be y=-5/1x+6?
But im only like 90% sure so dont take my word for it but i hope that right?