Through a review of records, Rebecca was able to determine that the mean age of the population she was studying was 23.4 years. This is known as a(n):
A)statistic.
B)inference.
C)parameter.
D)confidence interval.
E)confidence level.

Question

Quizplus · Accepted Answer

The mean age of the population is a parameter, which is a characteristic of the entire population. A statistic is a characteristic of a sample from the population. An inference is a conclusion or prediction made about the population based on sample data. Confidence intervals and levels are used to estimate the accuracy of a sample statistic in relation to the true population parameter.

Through a Review of Records, Rebecca Was Able to Determine