(a) at the 5% significance level, the data provide convincing evidence of a real difference in the proportion who are not affected personally between americans who make less than $40,000 annually and americans who make $40,000 annually. (b) we are 95% confident that 16% more to 2% fewer americans who make less than $40,000 per year are not at all personally affected by the government shutdown compared to those who make $40,000 or more per year. (c) a 90% confidence interval for (p< 40k − p≥40k) would be wider than the (−0.16, 0.02) interval. (d) a 95% confidence interval for (p≥40k − p< 40k) is (-0.02, 0.16).

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer

Find the area and perimeter of each composite figure. use 3.14 for π. round your answer to the nearest tenth. a square and a right triangle share a common side. image long description a 3-meter by 0.5-meter rectangle has triangles attached like wings to the 3-meter sides. the other two sides of both triangles measure 2.5 meters. the height of each triangle is 2 meters. a 6-inch by 4-inch rectangle has 2 half-circles attached like wings to the 6-inch sides. the radius of each half-circle is 3 inches. find the surface area and volume of each figure. use 3.14 for π. round your answer to the nearest tenth. a right circular cylinder has a base radius of 6 yards and a height of 20 yards. a rectangular prism has a base that is 9 centimeters long and 7 centimeters wide. the height is 2 centimeters. a rectangular prism has a base that measures 11 millimeters by 11 millimeters. the height is 11 millimeters.

In two or more complete sentences, determine the appropriate model for the given data and explain how you made your decision. (1,-1), (2,0.5), (5,1.5), (8,2)