Concept explainers
The correct statement which is true about the boldface numbers that (a) 72% is a sample; 56% is a population, (b) 72% and 56% are both statistics, (c) 72% is a statistic and 56% is a parameter, (d) 72% is a parameter and 56% is a statistic, (e) 72% and 56% are both parameters.
Answer to Problem 1PT
The correct answer is (c).
Explanation of Solution
Given information:
Number of registered voters = 663
Percent of voters who said they voted in the election = 72%
Percent of registered voters who voted in the election = 56%
Know that a descriptive measure for a population is a parameter and a descriptive measure for a sample is a statistic.
Here, since the proportion 72% is based on the study of randomly selected numbers of voters that is, 663; so 72% is a statistic.
Also, the proportion 56% is based on all registered voters. This means the 52% is a parameter.
Thus, 72% is a statistic and 56% is a parameter.
Hence, the correct answer is (c).
Chapter 7 Solutions
The Practice of Statistics for AP - 4th Edition
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Elementary Statistics (13th Edition)
Intro Stats, Books a la Carte Edition (5th Edition)
Introductory Statistics
Statistics for Business and Economics (13th Edition)
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