NAME: DATE: COURSE: SCORE: ACTIVITY: A. Find the range and the standard deviation. 5, 8, 16, 17, 18, 20 B. Solve for the Standard Deviation A consumer group has tested a sample of 8 size-D batteries from each 3 companies. The results of the test are shown in the following table. According to these tests, which of the company produces batteries for which the values representing hours of constant use have the smallest standard deviation? COMPANY HOURS OF CONSTANT USE PER BATTERY EVERSOBRIGHT 6.2, 6.4, 7.1, 5.9, 8.3, 5.3, 7.5, 9.3 DEPENDABLE 6.8, 6.2, 7.2, 5.9, 7.0, 7.4, 7.3, 8.2 BEACON 6.1, 6.6, 7.3, 5.7, 7.1, 7.6, 7.1, 8.5