Aradio station claims that the amount of advertising each hour has a mean of 15 minutes and a standard deviation of 2.9 minutes. you listen to the radio station for 1 hour and observe that the amount of advertising time is 16 minutes. calculate the z-score for this amount of advertising time. round to the nearest hundredth.

What is the total surface area of this square pyramid?

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

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)