A company has developed a new battery,but the average lifetime is unknown.In order to estimate this average,a sample of 110 batteries is tested and the average lifetime of this sample is found to be 200 hours.The 200 hours is the value of a:
A)parameter.
B)statistic.
C)sampling frame.
D)population.

Question

Quizplus · Accepted Answer

The 200 hours is the value of a statistic as it is calculated from the sample of 110 batteries and is used to estimate the unknown population parameter (average lifetime of all batteries produced by the company).

A Company Has Developed a New Battery,but the Average Lifetime