Please help! Need answers by 15! This is for an exam! Proportion of US Residents Less than 25 Years Old
The US Census indicates that 35% of US residents are less than 25 years old. Figure 1 shows possible sampling distributions for the
proportion of a sample less than 25 years old, for samples of size n = 20,1 = 100, and = 500.

0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Figure 1 Match the dotplots with the sample size
(n) Which distribution goes with which sample size?
N = 20
N = 100
N = 500
(B) I wese a proportion based on a sample of size 20, to estimate the population parameter p=0.35, would it be very
surprising to be an estimate that is off by more than 0.10 (that is the sample proportion is less than 0,25 or greater than 045)
How about with a sample of size n=100
How about with a sample of n=500
(Repeat part bit we ask about the sample proportion being off by just 0.05 or more Would it be very surprising to get an
estimate that is off by more than 0.05?
How about with sample size n=100?
How about sample size n=500

step-by-step explanation:

we are given a graph for system of inequalities.

in order to write the system of inequalities for the given graph, we need to find the inequality for each of the line separately.

let us find the slope of dotted line first.

taking two coordinates on the graph.

let us say (0,0) and (3,1).

let us find the slope of the line now.

slope of the dotted line would be =.

y-intercept of dotted line is y=0 only.

plugging slope m= and b=0 in slope-intercept form y=mx+b, we get

.

the line is shaded up of that dotted line.

therefore, for shading up we would take greater than inequality symbol > .

and because it's a dotted line we would take only > symbol in place of = sign in above equation of line.

therefore, inequality for dotted line would be

let us take two points (3,1) and (0,4) on the solid line.

slope of the solid line would be =.

for the solid line we have y-intercept b= 4.

plugging slope m= -1 and b=4 in slope-intercept form y=mx+b, we get

y = -1x + 4.

the line is shaded down of that solid line.

therefore, for shading down we would take less than inequality symbol < .

and because it's a solid line we would take ≤ symbol in place of = sign in above equation of line.

therefore, inequality for solid line would be

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.