Chapter 10 Free Response 1 c Auto s POSSIBLE POINTS: 33.33 The lifetime of two different battery types was tested. Each battery was randomly selected from a Normally distributed population of Brand name or Generic batteries then placed in an electronic device and turned on. The elapsed time until the device turned off (hours). The results are shown below. Brand Name 194 205.5 199.2 172.4 184 169.5 Generic 190 . 7 203.5 203.5 206.5 222 .5 209.4 Do the data provide any evidence of a difference in the battery life of brand name and generic batteries? Support your conclusion with appropriate statistical procedures. Use a = 0.10 Hint: S-P-D-C