Comparing Two Independent Population Proportions · Exercise 27

Two computer users were discussing tablet computers. A higher proportion of people ages 16 to 29 use tablets than the proportion of people age 30 and older. details the number of tablet owners for each age group. Test at the 1% level of significance.

$$\begin{array}{ccc}& \text{16–29 year olds}& \text{30 years old and older}\\ \text{Own a Tablet}& \text{69}& \text{231}\\ \text{Sample Size}& \text{628}& \text{2,309}\end{array}$$

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 27