According to CNN, 55% of all U.S. smartphone users have used their GPS capability to get directions. Suppose a major provider of wireless telephone service in Canada wants to know how GPS usage by its customers compares with U.S. smartphone users. The company collects usage records for this year for a random sample of 547,192 of its Canadian customers and determines that 302,050 of these customers have used their telephoneĂ˘â‚¬â„˘s GPS capability this year. Use this data to test whether Canadian smartphone usersĂ˘â‚¬â„˘ GPS usage differs from U.S. smartphone usersĂ˘â‚¬â„˘ GPS usage at a 5Ă‚Â 0.01. Discuss the practical significance of the results.
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