Among 238 cell phone owners aged 1824 surveyed by the Pew Research Center, 102 said their phone

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Among 238 cell phone owners aged 18–24 surveyed by the Pew Research Center, 102 said their phone was an Android phone.

a. Find a point estimate for the proportion of cell phone owners aged 18–24 who have an Android phone.

b. Construct a 95% confidence interval for the proportion of cell phone owners aged 18–24 who have an Android phone.

c. Assume that an advertisement claimed that 45% of cell phone owners aged 18–24 have an Android phone. Does the confidence interval contradict this claim?

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Elementary Statistics

ISBN: 9781259969454

3rd Edition

Authors: William Navidi, Barry Monk

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Question Posted: May 07, 2024 12:02 PM

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Among 238 cell phone owners aged 1824 surveyed by the Pew Research Center, 102 said their phone

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Elementary Statistics

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