Comparing Two Independent Population Proportions · Exercise 24
Researchers conducted a study to find out if there is a difference in the use of e-readers by different age groups. Randomly selected participants were divided into two age groups. In the 16- to 29-year-old group, 7 percent of the 628 surveyed use e-readers, while 11 percent of the 2,309 participants 30 years old and older use e-readers.
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OpenStax, Statistics · §10.3 Comparing Two Independent Population Proportions · Exercise 24
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