An exhaustive cataloging of all hardbound books at a college library revealed th

Question

An exhaustive cataloging of all hardbound books at a college library revealed that the mean age was 42.3 years, with a standard deviation of 14.5 years. Recently, the librarian commissioned a study to determine the condition of the books. A random sample of 600 books was assembled, and the mean age of this collection was found to be 57.3 years, with a standard deviation of 15.2 years. Which of these numerical values are parameters? Which of these numerical values are statistics? Which of these numerical values are parameters? Select all that apply. 15.2 years 57.3 years 14.5 years 42.3 years Which of these numerical values are statistics? Select all that apply. 57.3 years 15.2 years 42.3 years 14.5 years

Explanation / Answer

Parameters describe the POPULATION.

Statistics describe SAMPLES.

Thus, the PARAMETERS ARE:

42.3 years
14.5 years

and the STATISTICS are:

57.3 years
15.2 years [ANSWER]

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