(For the example the computed z-value is 2.76) Find the probability in the tail beyond (beyond is determined by the alternative hypothesis) the computed z-value. If the test is a 1-tail test ... In ...

1. Earphones and earplugs, Inc. wants to focus its marketing for a new compact disc player on young affluent professionals. Their marketing department identified two magazines, Wired Xers and Quiche & ...