Arecent study of high school students shows the percentage of females and males who have an after-school job. a simple random sample of high school students was interviewed. the students were asked whether they worked after school. of the 250 females, 58 answered yes, as did 113 of the 380 males. part a: construct and interpret a 95% confidence interval for the difference in population proportions of females and males who have an after-school job. be sure to state the parameter, check conditions, perform calculations, and make conclusion(s). (8 points)part b: does your interval from part a give convincing evidence of a difference between the population proportions? explain. (2 points)

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

the answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13

place r′ so that qr′ is parallel to the tangent.

now we get that ∠r′py=∠pr′q, where y is on the tangent, on the opposite side of p from x.

also, because of the symmetry, ∠r′py=∠qpx.

finally, note that no matter where we place r, as long as it's on the correct arc, we have ∠prq=∠pr′q.

stringing all these equalities together, we end up with ∠prq=∠qpx.

this picture will show how its going to look like.

hope this by jack monhen

answer is  

a.

16.1

hope you got it chief.