A sample of 82 mice is observed from birth until they are one year old.The total amount of growth experienced by each mouse is recorded.The median amount of growth of these mice is 4.5 cm.In this example, 4.5 cm is a:
A) parameter.
B) sampling distribution.
C) statistic.
D) random variable.

Question

Quizplus · Accepted Answer

The value of 4.5cm represents a calculated value from the observed sample of 82 mice, making it a statistic. A parameter would be a characteristic of the entire population, which is not given in this scenario. A sampling distribution would be a distribution of many possible statistics that could be obtained from repeated samples of the same size and from the same population, which is also not relevant in this case. A random variable would be a variable whose value is subject to randomness, which does not apply to the given scenario either.

A Sample of 82 Mice Is Observed from Birth Until