Useful Links * Mahara m found in violation of this agreement that I will be subject to sconduct Procedures. Hypothesis testing The owner of a local nightclub would like to determine if the mean age of her customers is less than 30. If so, she plans to alter the entertainment to appeal to a younger crowd. If not, no entertainment changes will be made. She has recently surveyed a random sample of n = 250 customers of the club. Sample mean = 29.55 and o = 5. The appropriate hypotheses to test are: HO: H 2 30 and H1: