Mrs. Hall will buy three pizzas for every two students at the competition. She has 12 students. Identify the dependent variable and how many pizzas she will buy. *

A. pizzas, 18
B. students, 18
C. pizzas, 8
D. students, 8

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