PLEASE, HELP ME. 100 POINTS There are 4 different digits 1, 2, x, y. know that from those 4 digits you can make 18 natural numbers with 3 different digits and the sum of those 18 numbers is 4508. calculate x + y

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