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The time that it takes a randomly selected employee to perform a certain task is approximately normally distributed with a mean value of 120 seconds and a standard deviation of 20 seconds. The slowest 10% (that is, the 10% with the longest times) are to be given remedial training. What times qualify for the remedial training?
Insect Pests
Species of insects that cause damage to crops, stored food, and structures, or that can pose health risks to humans and animals.
Natural Ecosystems
Ecosystems that occur naturally without human influence, consisting of a complex web of organisms and their physical environment.
Potential Pest Species
Organisms that are likely to cause harm or damage to crops, livestock, or ecosystems if their populations are not managed.
Hormones
Chemical messengers produced by glands in the body that regulate the activity of cells or organs.
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