George walks 11 mile to school. he leaves home at the same time each day, walks at a steady speed of 33 miles per hour, and arrives just as school begins. today he was distracted by the pleasant weather and walked the first 1212 mile at a speed of only 22 miles per hour. at how many miles per hour must george run the last 1212 mile in order to arrive just as school begins today?

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