Battery Lives Eighty randomly selected batteries were tested to determine their
Chapter 3, Problem 25(choose chapter or problem)
Battery Lives Eighty randomly selected batteries were tested to determine their lifetimes (in hours). The following frequency distribution was obtained. Class boundaries Frequency 62.573.5 5 73.584.5 14 84.595.5 18 95.5106.5 25 106.5117.5 12 117.5128.5 6 Can it be concluded that the lifetimes of these brands of batteries are consistent?
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