A mixture of purple paint contains 6 teaspoons of red paint and 15 teaspoons of blue paint. To make 63 teaspoons of purple paint, how much blue paint would we need? A. 12 tsp
B. 18 tsp
C. 30 tsp
D. 45 tsp

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