A ball is thrown upward and outward from a height of 6 feet. The height of the ball, f(x), in feet, can be modeled by f(x) = -0.2x2 +1.7x+6
where x is the ball's horizontal distance, in feet, from where it was thrown. Use this model to solve parts (a) through (C).
a. What is the maximum height of the ball and how far from where it was thrown does this occur?
The maximum height is ___feet, which occurs ___feet from the point of release.
(Round to the nearest tenth as needed.)

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to