Comparing Two Independent Population Proportions · Exercise 25
Researchers conducted a study to find out if there is a difference in the use of eReaders by different age groups. Randomly selected participants were divided into two age groups. In the 16- to 29-year-old group, 7% of the 628 surveyed use eReaders, while 11% of the 2,309 participants 30 years old and older use eReaders.
This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.
OpenStax, Introductory Statistics 2e · §10.3 Comparing Two Independent Population Proportions · Exercise 25
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