A manufacturer of batteries routinely tests its products to determine lifetime (hours of continuous usage). Suppose they select a sample of 30 AAA batteries and find that the
Average lifetime is 1500 hours. This is a
A) parameter.
B) statistic.
C) sampling frame.
D) sample.
E) population.

Question

Quizplus · Accepted Answer

Since the given information only pertains to a sample of 30 AAA batteries, the average lifetime of 1500 hours is a statistic.

A Manufacturer of Batteries Routinely Tests Its Products to Determine