Several dentist offices were concerned with their 8% rate of no-shows for appointments. The Canadian Dental Association recommended that to reduce these no-shows, the receptionist should call each patient a day before his or her scheduled appointment, as a reminder and confirmation. A study was then made of 125 randomly selected appointments that were made under the new system. If five no-shows were recorded, test the claim that the no-show rate is lower with the new system. Does the new system appear to be effective in reducing no-shows? Use the 0.05 level of significance.
Test the given claim, and draw the appropriate graph. Use the traditional method or the P-value method of testing hypotheses (or your instructor may specify which method to use with assigned exercises). Assume that all samples have been randomly selected.