A manufacturer claims its Brand A battery lasts longer than it's competitors Brand B battery, Nine batteries of each brand are tested independently , the hours of battery life are shown inthe table below Brand A 188 85 /80 181 72 90 85 85 84 Brand B |80 79 /77 82 75 81 77 73/78 What are the mean and standard deviation for Brand B ? A 77, 44, 17.28 B. 83. 33, 27. 50 C. none ofthechoices D. 78. 00, 8.25 E. 83 . 33, 5. 24 F. 77 . 44 4. 16 6. 78,00, 2. 87 H. 83 . 11, 5.80 1 . 83. 11, 33, 41