Dtr bro be In science class, Antonio and Anna were measuring the approximate speed of a marble as it
exits from an 8-foot-long ramp. They discovered that it took 2.1 seconds for the marble to
travel 12.5 feet from the end of the ramp.
If r =
d, where d is distance in feet and t is time in seconds, approximately how fast was the
marble traveling as it exited from the ramp to the nearest hundredth of a second?
t

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