The owner of a local night club has recently surveyed a random sample of n = 250 customers of the club. She would now like to determine whether the mean age of her customers is over 30. If so, she plans to alter the entertainment to appeal to an older crowd. If not, no entertainment changes will be made. /i>, if the level of significance (a) is decreased, the power of the test O Will increase O Will decrease O Will remain the same O Cannot be determinedHow many Kleenex should the Kimberly Clark Corporation package of tissues contain? Researchers determined that 60 tissues is the average number of tissues used during a cold. Suppose a random sample of 100 Kleenex users yielded the following data on the number of tissues used during a cold: X-bar = 52, s = 22. Suppose the alternative we wanted to test was H,: u 1.6604 O Reject Ho if t 1.9842 ort