Flu Vaccination Clinic Wait Times (Cont). CVS Minute Health Clinic once had a separate patient waiting line at each nurse practitioner station, but it now has a single waiting line that feeds the nurse practitioner stations as vacancies occur. The standard deviation of customer waiting times with the old multiple-line configuration was 1.8 minutes. Listed below is a simple random sample of waiting times (in minutes) with the single waiting line. The 10 simple values have a standard deviation of 0.5 minutes. 6.5 6.6 6.7 6.8 7.1 7.3 7.47.7 7.7 7.7 When CVS changed from multiple waiting lines to a single line, how was the variation among waiting times affected? The variation among wait times increased. The variation among wait times decreased. The variation among wait times remained the same. This is unknown based on the information given