An insurance analyst working for a car insurance company would like to determine the proportion of accident claims covered by the company. a random sample of 200 claims shows that the insurance company covered 80 accident claims and did not cover 120 claims. construct a 90 percent confidence interval estimate of the true proportion of claims covered by the insurance company.

0.343 < Pp < 0.457

Step-by-step explanation:

We are going to denote the population proportion of claims covered as Pp.

Ps is going to be the sample proportion of claims covered by the insurance company.

Ps = 80/200 = 0.40

Qs = 1 - Ps = 0.60

n = total number of claims = 200

E is going to be the margin of error.

z is the critical value. The z score for a confidence level of 90 % is going to be: 1.645

E = 0.057

The confidence interval for the population proportion is: (Ps - E, Ps + E)

(0.343, 0.457)

or

0.343 < Pp < 0.457

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice