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Question 1 of 2
1. Question
A company has developed a new phone battery whose average lifetime is unknown. In order to estimate this average, 100 phone batteries are randomly selected from a large production line and tested; their average lifetime is found to be 15 hours. The 100 phone batteries represent a:
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Question 2 of 2
2. Question
Which of the following represents a population, as opposed to a sample?
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