The height, h, of an ball that is thrown straight upward from an initial position 3 feet off the ground with initial velocity of 90 feet per second is given by the equation h = 3 + 90t – 16t2 where t = time in seconds. After how many seconds will the ball be 84 feet above the ground?

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain