A survey concluded that 60% of cars going through the Lomonosov street encounters traffic jam. After installing a new traffic lights, a random sample of 2500 cars was found to contain 1462 cars encountered traffic jam. Have the new installed traffic lights had any effect? State your conclusion with 0.05 level of significance

Yes, the new traffic lights have had an effect, as only 58.48% of surveyed cars had encountered a traffic jam, compared to 60% before the installation of the traffic lights.

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2

step-by-step explanation:

i believe its "c" because all of the other options include a but it could be d because there is a way of financing with cash at certain places but its uncommon.