B. a 2017 poll found that 55% of college students were very confident that their major will lead to a good job. if 25 college students are chosen at random, what's the probability that 13 of them are not confident that their major would lead to a good job? let a success be a college student not being confident their major would lead to a good job.

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