The following information is available for a seeded 5-day bod test conducted on a wastewater sample. 15 ml of the waste sample was added directly into a 300-ml bod incubation bottle. the initial do of the diluted sample was 8.8 mg/l and the final do after 5 days was 1.9 mg/l. the corresponding initial and final do of the seeded dilution water was 9.1 and 7.9 respectively. what is the 5-day bod (bod5) of the wastewater sample?