Name: Backwashed Filters
Abstract: An investigation of the backwash operations in a water-treatment plant concentrated on the frequency with which filters were backwashed. Ideally, each filter should be backwashed once every 24 hours. Data was collected for the 31 days of October.
References: Levine, David, Patricia Ramsey, and Robert Smidt. Applied Statistics for Engineers and Scientists. Upper Saddle River, NJ: Prentice Hall 2001.