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Mathematics, 16.12.2019 23:31 alexxreyess03
An accelerated life test on a large number of type-d alkaline batteries revealed that the mean life for a particular use before they failed is 19.0 hours. the distribution of the lives approximated a normal distribution. the standard deviation of the distribution was 1.2 hours.
about 68.26% of the batteries failed between what two values?
about 95.44% of the batteries failed between what two values?
about 99.97% of the batteries failed between what two values?
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An accelerated life test on a large number of type-d alkaline batteries revealed that the mean life...
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