For each of the following statements, identify the number that appears in boldface type as the value of either a
population characteristic or a statistic.
(a) A department store reports that 89% of all customers who use the store's credit plan pay their bills on
time
population characteristic
statistic
(b) A sample of 100 students at a large university had a mean age of 24.2 years.
population characteristic
statistic
(c) The Department of Motor Vehicles reports that 21% of all vehicles registered in a particular state are
imports.
population characteristic
statistic
(d) A hospital reports that, based on the 10 most recent cases, the mean length of stay for surgical patients is
7.3 days
population characteristic
statistic
(e) A consumer group, after testing 100 batteries of a certain brand, reported an average life of 61 hours of
use.
population characteristic
statistic
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(a) statistic
(b) statistic
(c) population characteristic
(d) statistic
(e) statistic
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