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 in the table below Brand A 88 85 1 80 81 72 90 85 85 84 Brand B |80 |79 / 77 82 75 81 |77 73 78 What are the mean and variance for Brand A? A . 77, 44, 17.28 B. 83. 33, 27, 50 C. none of thechoices 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, 61